Force of Virtue

A team-wide +1/+1 pump has always been sorcery-speed insurance in white, the kind of anthem you commit before combat and hope survives. Bolt the flash keyword onto it and you already have a combat blowout; add the alternative cost and the timing rewrites itself. That free mode only opens on your opponent's turn, and that restriction is the load-bearing part of the design: you keep four mana up as a bluff, and when the crackback comes you exile a white card from hand and drop the anthem for nothing, swinging a lost combat step or breaking a sweeper's math. The cost is exact, a white card and only when it's not your turn, so the free casts stay strictly reactive. This pairing rewards a board wide enough that a single point on every body decides the race, which is precisely the go-wide shell white already builds. The rest of this cycle spread the same instant-speed-free-spell idea across the colors for counterspells, removal, and card draw; this is the enchantment version, and the only one that leaves a lasting battlefield effect behind rather than resolving into the graveyard. That permanence is the difference: the free casts elsewhere are one-shot tempo, while this one keeps paying after the combat that justified it, a standing anthem bought with a card you could spare instead of mana you could not.