Chaos Seed and Pandemonium don't give a full list of every possible effect you can get from them, although i admit to not knowing either ><
Here are those I know of:
Lobotomize: remove ability
Rewind: put creature on top of deck
Sniper: deal 3 damages
Shockwave: deal 4 damages (instakills frozen creatures)
Lightning: deal 5 damages
Fire Bolt: Deal 3 damages + 3 for every 10 Fire quanta
Ice Bolt: Deal 2 damages + 2 for every 10 Water quanta, may cause freezing (for 3 turns)
Drain Life: Deal 2 damages + 2 for every 10 Darkness quanta, damage is returned to you as healing
Freeze: freezes for 3 turns
Infect: apply 1 poison damage
Gravity Pull: gain the gravity pull status (enemy attacks are directed against this creature rather than at your health)