Land — Island Swamp

with a possibility of Art cards

whenever a creature attacks you or a planeswalker you control

Completely transparent

but a mythic rare

Agatha's Soul Cauldron - Borderless (Foil) Revised Land — Island SwampLegendary Artifact You may spend mana as though it were mana of any color to activate abilities of creatures you control. Creatures you control with +1 +1 counters on them have all activated abilities of all creature cards exiled with Agathas Soul Cauldron. {T}: Exile target card from a graveyard. When a creature card is exiled this way, put a +1 +1 counter on target creature you control. Set: Wilds of Eldraine (WOE)