The Oatbreaker

+2: Put a power 3 or less creature from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step.
0: Create a Bloodgrain token with 'Pay 1 & tap, Sacrifice this artefact - you and up to 1 opponent gain 2 life, and up to 2 opponents lose 1 life'.
-X: Put X 1/1 Scarecrow creatures onto the battlefield with intimidate, planeswalk and 'When this creature dies, target player mills 3 cards'