Commander tax is an additional cost while affinity is a cost-reduction mechanic, and additional costs are applied to a spell before cost reduction
When youre also gaining a flying body in the bargain one that can carry Equipment or help trigger ninjutsu its great
When combat damage is dealt to you anything, they sacrifice one thing per time
Pitch a bunch of cards to effects like Cool but Rude, Key to the City, and Chainer, Nightmare Adept, then reward yourself with a surge of card draw to find additional payoffs like Monument to Endurance
What set is Sephiroth, Fabled SOLDIER // Sephiroth, One-Winged Angel from
So use Lysandre as an immediate fix, but look to set up Muk as soon as possible if you see a Wobbfuffet