Sylvester Archipelago

I thought it could only be activated shortly before the battle and lasts for one battle. At least, judging by Nebk's words, that is how it works.

[Keldrim attacks and deals 39 units of damage to Skeleton 1 (1500/damage ignore)
Keldrim attacks and deals 31*2=62 (crit.) units of damage to Skeleton 1 (1438)
Keldrim attacks and deals 40*2=80 (crit.) units of damage to Skeleton 1 (1358)
Keldrim attacks and deals 21 units of damage to Skeleton 1 (1358/damage ignore)
Keldrim attacks and deals 17 units of damage to Skeleton 1 (1358/damage ignore)
Lucina attacks and deals 80*2=160 (crit.) units of damage to Skeleton 1 (1358/damage ignore)
Lucina attacks and deals 80 units of damage to Skeleton 1 (1358/damage ignore)
Lucina attacks and deals 80*2=160 (crit.) units of damage to Skeleton 1 (1198)
Ravella attacks and deals 15 units of damage to Skeleton 2 (1500/damage ignore)
Ravella attacks and deals 15 units of damage to Skeleton 2 (1485)
Udyolina attacks and deals 92 units of damage to Skeleton 2 (1485/damage ignore)
Udyolina attacks and deals 92 units of damage to Skeleton 2 (1485/damage ignore)
Elisael attacks and deals 15 units of damage to Skeleton 2 (1485/damage ignore)
Elisael attacks and deals 15 units of damage to Skeleton 2 (1485/damage ignore)
Gordian attacks and deals 165 units of damage to Skeleton 1 (1198/damage ignore)
Gordian attacks and deals 165 units of damage to Skeleton 1 (1198/damage ignore)
Ravelin attacks and deals 40 units of damage to Skeleton 1 (1198/damage ignore)
Ravelin attacks and deals 40*2=80 (crit.) units of damage to Skeleton 1 (1118)
Khasna attacks and deals 51 units of damage to Skeleton 3 (1500/damage ignore)
Khasna attacks and deals 51 units of damage to Skeleton 3 (1499)
Tanasiy attacks and deals 71 units of damage to Skeleton 3 (1499/damage ignore)
Tanasiy attacks and deals 71 units of damage to Skeleton 3 (1428/freeze 1)
Alaina attacks and deals 19*2=38 (crit.) units of damage to Skeleton 2 (1447)
Alaina attacks and deals 19 units of damage to Skeleton 2 (1447/damage ignore)
Skeleton 1 moves 5 units of distance
Skeleton 2 attacks Ravella and misses
Skeleton 3 is frozen
Ravella counterattacks and deals 15 units of damage to Skeleton 2 (1432)
Ravella parries the attack of Skeleton 2

Keldrim attacks and deals 29 units of damage to Skeleton 1 (1169)
Keldrim attacks and deals 53 units of damage to Skeleton 1 (1116)
Keldrim attacks and deals 46 units of damage to Skeleton 1 (1116/damage ignore)
Keldrim attacks and deals 49 units of damage to Skeleton 1 (1116/damage ignore)
Keldrim attacks and deals 50*2= 100 (crit.) units of damage to Skeleton 1 (1116/damage ignore)
Lucina attacks and deals 80 units of damage to Skeleton 1 (1116/damage ignore)
Lucina attacks and deals 80*2=160 (crit.) units of damage to Skeleton 1 (1116/damage ignore)
Lucina attacks and deals 80 units of damage to Skeleton 1 (1036)
Ravella attacks and deals 15 units of damage to Skeleton 2 (1432/damage ignore)
Ravella attacks and deals 15 units of damage to Skeleton 2 (1432/damage ignore)
Udyolina attacks and deals 92 units of damage to Skeleton 2 (1432/damage ignore)
Udyolina attacks and deals 92*2=184 (crit.) units of damage to Skeleton 2 (1248/burn 3)
Elisael attacks and misses
Elisael attacks and deals 15 units of damage to Skeleton 2 (1233)
Gordian attacks and deals 165 units of damage to Skeleton 1 (1036/damage ignore)
Gordian attacks and deals 165 units of damage to Skeleton 1 (871/paralysis 2, magic)
Ravelin attacks and deals 40 units of damage to Skeleton 1 (831)
Ravelin attacks and deals 40 units of damage to Skeleton 1 (791)
Khasna attacks and deals 51*3=153 (VI) * 2 = 306 (II) units of damage to Skeleton 3 (1122)
Khasna attacks and deals 51 units of damage to Skeleton 3 (1122/damage ignore)
Tanasiy attacks and deals 71 units of damage to Skeleton 3 (1122/damage ignore)
Tanasiy attacks and deals 71 units of damage to Skeleton 3 (1051/freeze 1)
Alaina attacks and deals 19 units of damage to Skeleton 2 (1233/damage ignore)
Alaina attacks and deals 19 units of damage to Skeleton 2 (1214)
Skeleton 1 is paralyzed
Skeleton 2 attacks Ravella and misses
Ravella counterattacks and deals 15 units of damage to Skeleton 2 (1214/damage ignore)
Skeleton 2 loses 122 health from burn (1092)
Skeleton 2 attacks Ravella and misses
Skeleton 3 is frozen

Keldrim attacks and deals 29 units of damage to Skeleton 1 (762)
Keldrim attacks and deals 49 units of damage to Skeleton 1 (713)
Keldrim attacks and deals 40 units of damage to Skeleton 1 (673)
Keldrim attacks and deals 28 units of damage to Skeleton 1 (645)
Keldrim attacks and deals 35*2 = 70 (crit.) units of damage to Skeleton 1 (575)
Lucina attacks and deals 80 units of damage to Skeleton 1 (495)
Lucina attacks and deals 80 units of damage to Skeleton 1 (415)
Lucina attacks and deals 80*2=160 (crit.) units of damage to Skeleton 1 (255)
Ravella attacks and deals 15 units of damage to Skeleton 2 (1077)
Ravella attacks and deals 15*2 = 30 (crit.) units of damage to Skeleton 2 (1047)
Udyolina attacks Skeleton 2 and misses
Udyolina attacks and deals 92*3 = 276 (VI) + 14 = 290 units of damage to Skeleton 2 (757)
Elisael attacks and deals 15*2 = 30 (crit.) units of damage to Skeleton 2 (727)
Elisael attacks and deals 15 units of damage to Skeleton 2 (712)
Gordian attacks and deals 75*3 = 225 (V) + 100 = 325 units of damage to Skeleton 1 (death)
Gordian attacks and deals 165 units of damage to Skeleton 2 (712/damage ignore/paralysis 2, magic)
Ravelin attacks and deals 40*2 = 80 (crit.) units of damage to Skeleton 2 (632)
Ravelin attacks and deals 40 units of damage to Skeleton 2 (592)
Khasna attacks and deals 51*2 = 102 (II) units of damage to Skeleton 3 (949/freeze 1)
Khasna attacks and deals 51*2 = 102 (II) units of damage to Skeleton 3 (847)
Tanasiy attacks and misses
Tanasiy attacks and deals 71 units of damage to Skeleton 3 (776/freeze 1)
Skeleton 2 is paralyzed
Skeleton 2 loses 60 health from burn (532)
Skeleton 3 is frozen
Alaina attacks and deals 19 units of damage to Skeleton 2 (513)
Alaina attacks and deals 19 units of damage to Skeleton 2 (494)

Keldrim attacks and deals 54 units of damage to Skeleton 2 (440)
Keldrim attacks and deals 29 units of damage to Skeleton 2 (411)
Lucina attacks and deals 80*2=160 (crit.) units of damage to Skeleton 2 (251)
Lucina attacks and deals 80*2=160 (crit.) units of damage to Skeleton 2 (91)
Lucina attacks and deals 80*2=160 (crit.) units of damage to Skeleton 2 (death)
Ravella attacks and deals 15*2 = 30 (II) units of damage to Skeleton 3 (746)
Ravella attacks and deals 15 units of damage to Skeleton 3 (731)
Udyolina attacks and deals 92*3 = 276 (VI) + 14 = 290 units of damage to Skeleton 3 (731/damage ignore)
Udyolina attacks and deals 92 units of damage to Skeleton 3 (731/damage ignore)
Elisael attacks and deals 15 units of damage to Skeleton 3 (731/damage ignore)
Elisael attacks and deals 15 units of damage to Skeleton 3 (731/damage ignore)
Gordian attacks and deals 165 units of damage to Skeleton 3 (731/damage ignore)
Gordian attacks and misses
Ravelin attacks and deals 40*2 = 80 (crit.) units of damage to Skeleton 3 (651)
Ravelin attacks and deals 40 units of damage to Skeleton 2 (611)
Khasna attacks and deals 51 units of damage to Skeleton 3 (560)
Khasna attacks and deals 51 units of damage to Skeleton 3 (560/damage ignore)
Tanasiy attacks and deals 71 units of damage to Skeleton 3 (560/damage ignore)
Tanasiy attacks and deals 59*3 = 177 (VI) + 12 = 189 unit of damage to Skeleton 3 (371/freeze 1)
Alaina attacks and deals 19*2 = 38 units of damage to Skeleton 3 (333)
Skeleton 3 attacks Tanasiy and misses
Tanasiy counterattacks and deals 71 units of damage to Skeleton 3 (333/damage ignore)
Skeleton 3 attacks and deals 30*3 = 90 (VI) units of damage to Tanasiy (250/damage ignore)

Keldrim attacks and deals 19*2 = 38 (crit.) units of damage to Skeleton 3 (333/damage ignore)
Keldrim attacks and deals 23 units of damage to Skeleton 3 (333/damage ignore)
Keldrim attacks and deals 40 units of damage to Skeleton 3 (293)
Keldrim attacks and deals 35 units of damage to Skeleton 3 (258)
Keldrim attacks and deals 56 units of damage to Skeleton 3 (202)
Lucina attacks and deals 80*2=160 (crit.) units of damage to Skeleton 3 (202/damage ignore)
Lucina attacks and deals 80*2=160 (crit.) units of damage to Skeleton 3 (42)
Lucina attacks and deals 80*2=160 (crit.) units of damage to Skeleton 3 (death)