Zhulodok, Void Gorger

Cascade was designed as a payoff for going big: cast one expensive spell, get a second one free off the deck. This grafts that reward onto the one archetype where "expensive colorless spells" is not a coincidence but the entire plan. The keyword granted here is doubled, so every seven-plus-drop colorless spell you hard-cast digs twice, potentially unearthing two more haymakers for nothing. The clause that keeps the chain from spiraling is the from-hand restriction: the ability fires only on spells cast from your hand, and cascade casts its find from exile, so the free spells you unearth do not chain again off this creature. What you get is a single double-dip per hard-cast titan, not a self-replicating loop. The scaling is still brutal, because the cards it enables are already the largest colorless spells in the game: the various Ulamog and Kozilek printings, It That Betrays, the annihilator giants. The 7/4 body does no defensive work; it is a fragile enabler you drop early to prime the mana that follows. The mana-value-7 floor draws the balancing line, locking out the smaller Eldrazi and the utility colorless spells so the doubled trigger only rewards the payoffs that were going to end games anyway. Colorless-matters spent years as a curiosity attached to Wastes and devoid; this reframes it as an engine that staples two free spells onto every titan you were already casting.