Card
Boseiju, Who Endures
Legendary Land · MV 0.0
Oracle text
{T}: Add {G}. Channel — {1}{G}, Discard this card: Destroy target artifact, enchantment, or nonbasic land an opponent controls. That player may search their library for a land card with a basic land type, put it onto the battlefield, then shuffle. This ability costs {1} less to activate for each legendary creature you control.
Rulings
2022-02-18 · Discarding the card is part of the cost to activate a channel ability.
2022-02-18 · If a channel ability requires a target, you may not activate it without a target just to discard the card.