You can make a 4/4 Elemental creature token, you can pump your whole board by putting a +1/+1 counter on each creature you control, or you can scry 2 cards and then draw one
No matter the Commander, running this many colors is very taxing on a mana base (as it should be)
Rhystic Study [Best Blue Tax Effect MTG Commander Staple] Rhystic Study stands as the premier card advantage engine in Commander, taxing opponents spells to fuel your hand

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
