I've found an online Magic the Gathering card creator and with it, I will make Magic the Gathering cards of six famous Titan wizards - the Star Pupils and the Demonic Three.
This character's card has pretty obvious abilities. As a healer, it prevents damage. He can also remove diseases in the form of -1/-1 counters. However, his disease prevents him from actively taking part in combat.
The old wizard has a few tricks up his sleeve. As we know from Forest of Doom, he can turn you into a frog. He also creates small magical trinkets to sell to adventurers to help them in their quests or he may teach them spells. This is represented by his +1/+1 counter ability.
Using my conversion table, Balthus should have a power of 4 and a toughness of 6. Balthus makes tokens as he is rasing an army to invade the Vale of the Willow. His collection of dangerous spells is represented by his damage ability.
Marr's experiments in Marrangha where he uses the parts of captured creatures in an attempt to create the ultimate weapon. This is why he can destroy creatures. Also, if he puts more effort into his magic, he can create better beasts.
What other characters could we make into Magic cards?