Errant, Street Artist

Gameplan

Errant turns any free copy of a spell into a repeatable engine: cast a spell, copy it once with a copy effect (or via Errant itself by copying another copy), then use Errant's ability to make additional copies of those non-cast spells each turn. You stall early behind cheap interaction and counters, then chain copies of high-impact spells—draw, bounce, or damage—to bury the table in card and tempo advantage before closing with a big finisher.

Key Cards

• Twinning Staff — Doubles the number of copies Errant and other copy effects produce, exponentially scaling your engine.
• Lithoform Engine — Provides an additional, repeatable copy source so you always have a non-cast spell for Errant to target.
• Thousand-Year Storm — Generates extra copies of every spell you cast, giving Errant endless fuel and snowballing storm value.
• Repeated Reverberation — Makes multiple copies of a spell at once, immediately feeding Errant's loop and amplifying a key effect.
• Pemmin's Aura — Untaps Errant repeatedly so you can fire the copy ability many times in a single turn.
• Expansion // Explosion — Explosion is a scalable copy target that draws cards and deals lethal damage when duplicated.
• Aetherflux Reservoir — All the copies and spell volume gain you huge life, then the activated ability ends the game.

Upgrade Path

Add fast mana (Sol Ring, Mana Crystals, moxen) and untap effects (Pemmin's Aura, Freed from the Real) to enable multiple activations per turn and true combo turns. Stack more copy multipliers (Twinning Staff, Lithoform Engine, Thousand-Year Storm) and a clean kill like Aetherflux Reservoir or Aria of Flame to convert the engine into a deterministic win. Tighten the interaction suite with Force of Negation, Mana Drain, and Cyclonic Rift to protect Errant and stay alive in cEDH-leaning pods.