mtg a deck can have any number of cards named o:"a cards" · Scryfall Magic: The Gathering Search Breaking the Singleton Rule in

Spells with the chosen name cant be cast

First is the one Id actually play as the commander, which is Erestor of the Council

1 Lucius the Eternal 1 Magnus the Red 1 Pink Horror 1 Heralds of Tzeentch 1 Noise Marine 1 Bituminous Blast 1 Deny Reality 6 (9) 1 Be'lakor, the Dark Master 1 Mortarion, Daemon Primarch 1 Bloodthirster 1 Keeper of Secrets 1 Let the Galaxy Burn 1 Drach'Nyen 1 The Horus Heresy 1 Mutalith Vortex Beast 1 Warstorm Surge 7 (1) 1 Lord of Change 8 (1) 1 Decree of Pain 9 (1) 1 Blasphemous Act 11 (1) 1 Blood for the Blood God

When it enters the battlefield, it gives a creature -13/-13 until the end of the turn, which is great