Kennen

Lightning Rush draws one of the top three cards and puts the others into the trash, which can reduce Rhasa's Energy cost and stock your replay choices. Use Rush when finding a card and stocking the trash both help the next play. Rhasa's discount does not remove its Chaos Power cost. Every card that leaves the trash raises that Energy cost again: Fizz recycles the spell it replays, and a spell played with Flow is banished afterward.

Matriarch's two-Energy, one-Chaos-Power empowerment can replay a unit costing at most three Energy and one Power to base, ignoring its cost. Fizz qualifies, and his play effect can then replay a spell costing at most three Energy with its Energy waived. You still pay that spell's Power. Ride the Wind therefore needs another Chaos Power, but gives you movement and a ready; Star-Crossed can return Fizz and an enemy unit to hand. The spell Fizz uses is recycled, so the next Fizz cannot immediately reuse that same copy from the trash. Matriarch also needs to become unempowered before her own empowerment can produce another unit. Neither card creates a free, unlimited loop.

Storm of Shuriken gives a spell in your trash Flow equal to its printed cost when he conquers. That can make Lightning Rush playable from the trash for one Energy this turn, instead of its printed Flow price of two Energy and one Power. Pick the Flow option you want to pay; they do not combine. A successful outside-hand play can empower the Legend again, but an exhausted Legend still cannot activate until it readies. Flow also keeps the spell's normal timing and banishes it when it leaves the chain. Choose the spell you can afford to use now, not the most impressive name that will sit in the trash until the permission expires.