Aclazotz, Deepest Betrayal

Flying, lifelink Whenever Aclazotz attacks, each opponent discards a card. For each opponent who can't, you draw a card. Whenever an opponent discards a land card, create a 1/1 black Bat creature token with flying. When Aclazotz dies, return it to the battlefield tapped and transformed under its owner's control.

(Transforms from Aclazotz, Deepest Betrayal.) {T}: Add {B}. {2}{B}, {T}: Transform this land. Activate only if a player has one or fewer cards in hand and only as a sorcery.