Deckhand
PricingSign in

Playtest

Edison · Back to the deck

How do you want to playtest?

The matchup

This deck
[EDISON] Macro Monarch-StunEdison

Chosen

Your decks

Sign in to playtest the decks you keep.

Popular TCG decks

The archetypes with the most TCG decks in our corpus since 2026-05-08, one recent deck each. Suggestions only — nothing is chosen for you.

Opponent
Choose an opponentOne of your decks, a popular one, or any deck we hold

Your decks

Sign in to play against the decks you keep.

Popular Edison decks

The archetypes with the most Edison decks in our corpus since 2026-05-07, one recent deck each. Suggestions only — nothing is chosen for you.

GoldfishA copy of this deck that never acts. There is no opponent to choose.
Who goes first?

Who goes first alternates duel by duel. The results measure the bot as much as the deck: both sides are played by the same heuristics.

Plays under Master Rule 1 (2010 text for errata'd cards) · 4 cards play their Edison text · Side Deck not usedRules and credits

Edison is played under Master Rule 1 (2010 text for errata'd cards): every card works as it is ruled today, so this is close to Edison play, not exact.

  • The 15-card side deck is not used: a playtest is game one.

This deck: Edison card text

Plays its Edison text (4 cards):

  • Brain Control — Takes any face-up monster the opponent controls, Synchro, Fusion and Special-Summon-only monsters included.
  • Brionac, Dragon of the Ice Barrier — Discard any number of cards to return that many cards on the field, on either side, to the hand. No once-per-turn limit.
  • Goyo Guardian — 1 Tuner of any Attribute + 1 or more non-Tuner monsters.
  • Ancient Fairy Dragon — Each effect is once per turn per copy, in either Main Phase. Destroys one Field Spell without targeting; if it does, gain 1000 LP and you may add any Field Spell from the Deck.

Every duel is dealt from a seed, which the address keeps once you start: reloading the duel deals the same hands again.

Rules engine: YGOPro core (MIT), via koishipro-core.js 1.5.5. Card behaviour: YGOPro card scripts @ b83db1cc3f (GPL-2.0). Deckhand fixes 10 of them in every duel: utility.lua, which every card script shares, The Dragon that Devours the Dogma, Black Dragon Ninja, Branded Beast, procedure.lua, which every card script shares, Elemental HERO Tempest, Portable Battery Pack, Tri-Brigade Revolt, Tri-Brigade Arms Bucephalus II and Remove Brainwashing (GPL-2.0, derived from them: the fixes). In Edison duels, 20 cards play their period text through Deckhand’s own versions of their scripts (GPL-2.0, derived from those scripts: the Edison overrides).