Hi, I started buying and playing Warhammer Invasion quite recently. I used to played Magic before this and knew about the Warhammer world before buying the game. I got hooked to this new game and decided to post some of my designs for cards on this forum.
Here are a few cards for the Chaos faction especially involving the corruption mechanic. Any OR in card descriptions below mean that I am not sure which design will be better for balance and decided to post all possibilities.
Tactics with : Corrupt all units in play. Play only during your turn.
Support with : Forced: When this zone is attacked, corrupt 1 target attacking unit before defenders are declared.
Blessed of Slaanesh. Sorcerer. (3+1). 1/2
Quest. Action: Spend 2 resources to deal 1 damage to target unit and corrupt it (limit once per turn).
Inspired by the card Shrine to Nurgle, I designed shrines for the other gods.
Shrine to Tzeentch : After an opponent's unit becomes the target of a card effect OR tactic under your control, corrupt that unit. (corrupting magic for tz)
Shrine to Slaanesh : Opponents cannot trigger card effects on units unless, that unit is corrupted as an additional cost. (I am not sure if the wording is clear. The idea is to turn opponent's units' activations similar to actions on cards like Harpies, Witch Hag, Mortella and Monster of the Deep).
Shrine to Khorne : At the end of your battlefield phase corrupt each of your opponent's units that could have defended but did not. (i think khorne's idea of corruption is cowardice, terror, panic, fleeing from battle, etc)
Tactics for Khorne: Corrupt all units that participated in combat this turn.
Play before OR at the end of any Battlefield phase. At the end of this battlefield phase corrupt all units that could have attacked but did not and all units that could have defended but did not.
Skulls for the Skull Throne (1+2)
Choose a target unit in any battlefield. Deal damage to that unit equal to the number of damage tokens on it.
Thats all for today. I hope to post more ideas in the future.