Free Spell

Spells with an alternative cost that lets you skip the mana entirely. Two families: the pitch and evoke spells that exile a card from hand of a matching color, Force of Will exiling a blue card and paying life, Force of Negation exiling a blue card, the Evoke elementals Fury, Solitude, Endurance, and Grief exiling a card of their color to enter for free, Commandeer and Snapback exiling blue cards rather than pay their mana; and the conditional free spells that cost nothing once a condition holds, the Commander cycle of Fierce Guardianship, Deadly Rollick, Deflecting Swat, Flawless Maneuver, and Obscuring Haze if you control a commander, the Mercadian Legates and Massacre against an opponent's lands, and Qasali Ambusher when a Forest and a Plains are under your control. This makes them the backbone of tempo-free interaction on an empty board. Sibling of Cost Alternative, which reads the rather-than-pay wording and covers alternatives that still demand a resource such as sacrificing lands; the two overlap on the pitch spells and split on the conditional free spells, which say cast without paying and match here only. Distinct from Cost Reducer, which only shaves mana off costs instead of removing the cost outright, and from Free Caster, where the card casts other spells for free rather than being the free spell itself.