Invasion of Ikoria // Zilortha, Apex of Ikoria

(As a Siege enters, choose an opponent to protect it. You and others can attack it. When it's defeated, exile it, then cast it transformed.)When this Siege enters, search your library and/or graveyard for a non-Human creature card with mana value X or less and put it onto the battlefield. If you search your library this way, shuffle.ReachFor each non-Human creature you control, you may have that creature assign its combat damage as though it weren't blocked.