Komula, Nature's Ferocity

Whenever Komula, Nature's Ferocity attacks, you may sacrifice a nonland permanent. If you do, return target permanent from your graveyard to the battlefield with converted mana cost less than or equal to the number of equipment
attached to Komula.
{5}{r}: Untap all creatures you control. After this phase, there is an additional combat phase followed by an additional main phase.