Caleb, Of The Nein

If a card has {r} in it: you deal 4 damage to any
target and target creature gains haste.
If a card has {w} in it: You gain 4 life and target
creature gains lifelink.
If a card has {u} in it: You draw 2 cards and target
creature gains hexproof.
If a card has {g} in it: You put 4 +1/+1 counters
on any creature and target creature gains trample
If a card has {b} in it: Return 2 cards from your graveyard to your hand and target creature gains deathtouch.