1) The "Osiny Roy" (wasp swarm) will inflict burning or dehydration (undead and constructs are immune).
2) "Stena Mechov" (wall of swords) will transform into a wall of something else, perhaps a thorny bush.
3) I want to turn the "Kristall" (crystal) into a poisonous bomb.
4) The "Razrushayushiy Luch" (devastating beam) will be related to acid (I haven't come up with the name and effect yet, but the icon is already there).
5) The slow effect will have the effect of stopping cold, but without snowflakes, just ice on the ground.