Set, Necropolis Ghoul

Wild Radiation Surge - Whenever
Set, Necropolis Ghoul attacks, roll a d20.
1-9 | Exile the top card of your library.
You may play it this turn.
10-19 | Exile the top two cards of your library.
You may play them this turn.
20 | Exile the top three cards of your library.
You may play them this turn.