Muldrotha, the Gravetide - [Borderless] Double Masters 2022 (2X2) BFZ "Of course it will grow

"Of course it will grow beyond control—it was designed to choose its own evolution

Sacrifice Verdant Catacombs: Search your library for a Swamp or Forest card

pay {U} and exile it with four time counters on it

The goblins didn't think of the myr at all

players can't cast spells or activate abilities that aren't mana abilities

Muldrotha, the Gravetide - [Borderless] Double Masters 2022 (2X2) BFZ "Of course it will growDuring each of your turns, you may play a land and cast a permanent spell of each permanent type from your graveyard. (If a card has multiple permanent types, choose one as you play it.) Yargle hadn't bargained on her showing up.