If a creature entering the battlefield under your control causes a triggered ability of that creature to trigger, you may exile it. If you do, that ability triggers an additional time.
Collector Number: 38
Aether Leak is legal in every format.
MSEM Masters 2019
View gallery of all printings
2022-06-01 — Has been reworked. Originally
Instant with "Search your library for a creature card, put it onto the battlefield, exile it, then shuffle."
2022-06-01 — Unbanned in MSEM