Leading the charge would be the fittingly flavorful Anje Falkenrath, who could rummage and be untapped when discarding madness cards
P/T Number 321 Language Espaol Legal Formats Alchemy, Brawl, Commander, Competitive Brawl, Historic, Legacy, Modern, Pioneer, Timeless, Vintage Rulings (6/6/2025) Vivi Ornitier's first ability is a mana ability
guywitharock on These aren't Homemade, They're made in bombfactory 1 year ago You may want to consider some "mana dorks" for your commander in the way of easy-to-cast, different colored token creatures: Also, there are some interaction-related convoke spells which are probably worth subbing in over other non-convoke options: Depending on the direction you want to take, there are some cards which support a swarm strategy: Nadir Kraken pairs nicely with your extra card draw, and generates rare blue creature tokens for blue-color convoke mana
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Lots of enchantments both granting abilities like flying, trample, and growth as well as stopping your opponents from doing much of anything on the battlefield