Lochran the Forest Keeper

Protection from black and red
Trample, indestructible
Beasts you control get +2/+2.
Lochran the Forest Keeper can't be blocked
by black or red creatures.
Whenever a beast you control attacks, each
opponent may pay {1} for each creature.
If they don't, that beast gains "This creature
can't be blocked" until end of turn.