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I suppose if a card said convoke to copy an ability you control, or Strionic Resonator each turn for short, I'd want to include it too

Why Theros

Talisman Cycle + Signet Cycle Almost every multicolor Commander deck uses some number of Talismans and Signets to power their ramp, especially if theyre not green

Im already running Storm of Souls as a way to bring back all of my small creatures in my Adeline, Resplendent Cathar deck, so I can see this card slotting in immediately as a secondary way to recover from a devastating board wipe

This effectively can double the mana production a player has access to on each of their turns