Horizon of Darkness

Fai: Shield 3 on Henry.
Henry runs straight towards the demon and uses Banish 5. If successful, summon 4 on the fish and octopus 7. If unsuccessful (but not immune), repeat Banish.

Fai uses Shield
Henry: -70% damage, 1 turn
Henry moves 12 units and uses Banish
Water Demon (1528 | 3505) paralyzed for 1 turn
Henry uses Summon
Creature - Success, 3 turns
Octopus 7 - Success, 3 turns
Octopus 8 moves 13 units
Octopus 9 moves 13 units
Octopus 10 moves 13 units