Adrestia

Islandwalk (This creature can't be blocked as long as defending player controls an Island.) Whenever Adrestia attacks, if an Assassin crewed it this turn, draw a card. Adrestia becomes an Assassin in addition to its other types until end of turn. Crew 1

From Magic: The Gathering.

Open the interactive version on https://mythscribe.cloud/app/tcg/cards/cms6ok700empppb1hakmzo9nq.