With all the new Alchemy cards, a creature would be interesting.
Alchemist
3/4
Cost: 4 Time
3 time: Enhance target with a random Alchemy spell.
Upgrade:
Grand Alchemist
4/5
Cost: 3 Time
2 time: Enhance target with a random Alchemy spell.
Time is due to the amount of time needed to collect ingredients and brew potions.
I don't want to make this monster OP, but make it interesting.