As you cascade, you may put a land card from among the exiled cards onto the battlefield tapped. (Do this after the last card is exiled but before deciding whether to cast a nonland card.)
Stack your deck with cascade spells and ramp into them so each cascade both casts a free spell and drops a land onto the battlefield, snowballing into game-ending payoffs. Averna turns every cascade trigger into a free land drop, fueling Landfall and big mana strategies while you chain spells. Win by overwhelming the table with cascade value, landfall payoffs, or a big finisher you slam ahead of schedule.
Free land drops on every cascade accelerate mana and trigger landfall repeatedly
Temur colors give the best ramp, card advantage, and cascade payoffs
Cascade generates raw card and tempo advantage every spell
Draws a card and gains life for each land Averna sneaks into play.
Tighten the curve so cascades hit impactful nonland spells rather than whiffing, and add more cascade enablers like Imoti and Maelstrom Wanderer to maximize triggers. Upgrade the manabase with fetchlands, shocks, and Triomes that synergize with landfall and provide fixing, plus ramp like Cultivate and Three Visits. Add powerful landfall payoffs (Scute Swarm, Avenger of Zendikar) and protection for Averna to convert the engine into reliable wins.