Profane Altar

At the beginning of your upkeep, put a charge counter on this card. Whenever you cast a rune or ritual card, choose one. This effect may only be activated up to three times per turn. - Create a 2/2 zombie golem with menace for each charge counter on this card. - Destroy target permanent with mana value equal to the number of charge counters on this card. - Return target multicolored permanent from your graveyard to the top of your library.