Alex Mason, Unbroken Soldier

Trample

Whenever Alex Mason, Unbroken Soldier deals combat damage to a player, you may sacrifice a creature. If you do, return a creature card from your graveyard to the battlefield with a +1/+1 counter on it.

Mind Games — At the beginning of your upkeep, you may reveal a card from your hand. If that card is a creature card, Alex Mason gains indestructible until end of turn.
Whenever a creature you control dies, Alex Mason, Unbroken Soldier gets +1/+1 until end of turn.