Cascade
Cascade concepts like Cost Alternative, Discover, and Free Spell.
- Cost AlternativeSpells with an alternative cost replacing their mana cost, paid by sacrificing or exiling resources, like Fireblast, Force of Will, and Gush.
- DiscoverCards with the Discover keyword that exile cards off the top of the library and cast a nonland card with mana value less than or equal to the discover number for free, like Geological Appraiser and Quintorius Kand.
- Free SpellSpells you can cast for no mana by exiling another card from your hand, sometimes with a small life payment, like Force of Will, Fury, and Solitude.