6 - What Must Be Done What Must Be Done is an interesting board wipe

Synergy, Griefing, Staples, Building a Doran Deck ) Commander Starter Kits 1 (kick start your allied two-color decks for $25) Commander Starter Kits 2 (kick start your enemy two-color decks for $25) Commander Starter Kits 3 (kick start your shard three-color decks for $25) Commander write-ups Ive done (and links to decklists) : Zurgo Bellstriker (Bellstriking Like a Boss) Dragonlord Ojutai (Troll Shroud) Karrthus, Tyrant of Jund (Dragons, Megamorphs, and Dragons) Dromoka, the Eternal (One Flying Bolster Basket) Shu Yun, the Silent Tempest (Tempests and Teapots) Tasigur, the Golden Fang (Hatching Evil Sultai Plots) Scion of the Ur-Dragon (Dragon Triggers for Everyone) Nahiri, The Lithomancer (Lithomancing for Fun and Profit) Titania, Protector of Argoth (Titanias Land and Elemental Exchange) Reaper King (All About VILLAINOUS WEALTH) Feldon of the Third Path (She Will Come Back to Me) Sidisi, Brood Tyrant (Calling Up Ghouls with Sidisi) Zurgo Helmsmasher (Two Times the Smashing) Anafenza, the Foremost (Anafenza and Your Restless Dead) Narset, Enlightened Master (The New Voltron Overlord) Surrak Dragonclaw (The Art of Punching Bears) Avacyn, Guardian Angel

This card's baseline isn't great, and triggering it so that it can become a creature multiple times is going to be tough
Permanents phasing out trigger leaves-play abilities as usual