Demon of Dark Schemes + Myr Battlesphere + Pitiless Plunderer + Viscera Seer

Exhibition

Decks

How it works

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Cast Myr Battlesphere by paying .
When Myr Battlesphere enters the battlefield, it triggers, creating four 1/1 Myr artifact creature tokens.
Activate Viscera Seer four times by sacrificing Myr Battlesphere and three Myr tokens.
When Myr Battlesphere and the Myr tokens die, Demon of Dark Schemes' second ability and Pitiless Plunderer each trigger four times.
Resolve all Demon of Dark Schemes triggers, causing you to get .
Resolve all Pitiless Plunderer triggers, creating four Treasure artifact tokens.
Resolve all Viscera Seer abilities, causing you to scry 1 four times.
Activate three Treasures by tapping and sacrificing them, adding .
Activate Demon of Dark Schemes by paying and , putting Myr Battlesphere from your graveyard onto the battlefield.
Repeat from step 2.

In which brackets is this combo allowed, per Spellbook's Exhibition tier?

1–2 · Exhibition & Core

Allowed in this bracket.

3 · Upgraded

Allowed in this bracket.

4–5 · Optimized & cEDH

All combos are allowed.