Of course, if an opponent deals with your 3/4 Creature, your Commander is out of luck, so be careful attacking into open mana
However, in terms of efficiency and versatility, cards like Cloudshift or Ephemerate might be better options as they provide similar effects for a lower cost or with added benefits
Brawl Not Legal Vintage Legal Timeless Not Legal Commander Legal Pauper Legal Oathbreaker Legal Penny Legal Toolbox Buy This Card Notes and Rules Information for Flickering Spirit: When the ability resolves, Flickering Spirit is exiled, then immediately returned to the battlefield
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At the very least, you should almost always be getting one Storm Crow token per turn from this card
Ones that are synergetic to specific strategies and those that are generically powerful