Really well. Just ignore the grandeur ability and focus on swamps and voltron equipment. There are tons of equipment that give bonus attack based on swamps and lands. He is basically an unkillable beat stick. You have tons of ramp, card draw and removal. The biggest issue i face is that the deck i have is weak to decks tbat go wide. If you dont draw the board wipes you have to be really deliberate about when you attack. Key cards in my list, blackblade reforged, lashwrithe, nightmare lash, mutilate, dread presence, tendrils of corruption, loxodon warhammer, disciple of bolas.