Whenever you cast a noncreature spell, create a 1/1 colorless Hero creature token. If four or more mana was spent to cast that spell, draw two cards. If eight or more mana was spent to cast that spell, sacrifice Tellah and it deals that much damage to each opponent.
Cast big noncreature spells to flood the board with Hero tokens, draw two cards off any spell costing 4+, and eventually fire off an 8+ mana spell to sacrifice Tellah and burn every opponent. You ramp into expensive X-burn and instants/sorceries, using the tokens as fodder and the card draw to keep the chain going.
Powerful built-in card advantage engine—any 4+ mana spell refills your hand
Generates a steady stream of Hero tokens for chump blocking, sacrifice fodder, or go-wide finishes
Can close games out of nowhere by sacrificing Tellah after a huge spell for direct damage to all opponents
Lives in the deep blue/red spellslinger card pool with tons of support
Tellah's 8-mana damage trigger requires building up enormous mana, which is slow and telegraphed
Sacrificing Tellah to deal damage removes your engine and forces command-tax recasts
Mediocre defensive stats (no built-in evasion or protection) leaves him vulnerable to removal
Reliant on noncreature spells, so creature-heavy or stax draws can stall the engine
Legendary Creature — Human Wizard
