Rogues' Gallery Never Has Valid Targets
"Rogue's Gallery" with multiple creatures in the graveyard to return and it wouldn't ever let me cast it all game long
I had the same problem this evening. I was in a draft match, cast this spell with multiple creatures of different mana colors in my graveyard, and it would not let me select a single one. I lost my draft match, and this could have turned the tide. Frustrating as ****.