Canonical Summary
Experiment Kraj vs. Toph, Broken Metalbender
- Date
- 2026-07-27
- Canonical ID
- grr-0006
- ChatGPT Deck
- Experiment Kraj
- Gavvin Deck
- Toph, Broken Metalbender
- First Player
- Toph, Broken Metalbender
- Winner
- Toph, Broken Metalbender
- Winning Pilot
- Gavvin
- Win Turn
- 7
- Win Method
- Combo
- ChatGPT Model
- GPT-5.6 Sol
- ChatGPT Reasoning
- High
Outcome Note
Storm Cauldron + Earthbent Sol Ring generated infinite colorless mana; Staff of Domination converted it into drawing the deck.
Recovered Game Report
Game Summary
Experiment Kraj kept an acceleration-heavy seven and developed quickly: Birds of Paradise into Rishkar, Peema Renegade, followed by Ioreth of the Healing House, Bloom Tender, Experiment Kraj, Hadana’s Climb, and Murkfiend Liege. The plan was clear—establish +1/+1 counters, use Ioreth to untap Kraj, and exploit activated abilities copied from creatures carrying counters. Kraj was not mana-constrained; it assembled a substantial engine board by Turn 6.
Toph opened with Sol Ring and Sylvan Library, then cast Toph, Broken Metalbender on Turn 3 and Kodama of the East Tree on Turn 4. Kodama accelerated the permanent engine by putting additional permanents onto the battlefield, including Phyrexian Altar and Staff of Domination. Ranger-Captain of Eos found Sylvan Safekeeper, while Kuldotha Forgemaster became both an artifact tutor and an Earthbend target.
Kraj’s principal interaction came on Turn 6. After Simic Manipulator evolved from Thrun, the Last Troll entering, Kraj copied its ability and attempted to steal Sylvan Safekeeper. Toph responded by sacrificing Sol Ring to Safekeeper, giving Safekeeper shroud and causing the theft ability to lose its target. Earthbend returned Sol Ring tapped. That exchange protected Toph’s board and consumed Kraj’s counter and activation.
On Turn 7, Kuldotha Forgemaster sacrificed itself and two Treasure tokens to find Storm Cauldron. Earthbend returned Forgemaster tapped, and Kodama used Storm Cauldron’s entry to put Staff of Domination onto the battlefield. Toph made Sol Ring a land in addition to its other types, so tapping it for mana triggered Storm Cauldron and returned it to hand. Toph could then cast Sol Ring again for one mana, tap it for two, and repeat for a net gain of one colorless mana each cycle. Staff of Domination converted the infinite mana into drawing the deck, at which point Kraj conceded.
Key Moments
- Toph kept seven after using Commander’s free first mulligan. Kraj kept an opening seven containing two lands, Birds of Paradise, Bloom Tender, Rishkar, Peema Renegade, Ioreth of the Healing House, and Simic Manipulator.
- Toph’s Turn 1 Sol Ring enabled a Turn 2 Sylvan Library. Toph repeatedly paid life to keep extra cards, reaching 18 life by Turn 7 but maintaining the flow of engine pieces.
- Kraj used Rishkar to place counters on itself and Birds of Paradise, turning both into additional mana sources.
- Ioreth and Bloom Tender were deployed before Experiment Kraj, giving the commander an established mana-and-untap framework when it arrived on Turn 4.
- On Turn 5, Kraj tapped itself to add another counter to Rishkar, then used Ioreth to untap Kraj. Hadana’s Climb supplied Rishkar’s third counter and transformed into Winged Temple of Orazca.
- Kraj’s Turn 5 sequencing required all available mana for Hadana’s Climb and Murkfiend Liege. A proposed Rishkar attack was rewound after correcting the mana accounting because Rishkar had to tap to cast the spells.
- Kodama of the East Tree repeatedly expanded Toph’s board, putting Treasure Vault, Gemstone Caverns, Phyrexian Altar, and eventually Staff of Domination onto the battlefield from hand.
- Ranger-Captain of Eos found Sylvan Safekeeper, which became the critical protection piece against Kraj’s attempted theft.
- On Turn 6, Kraj cast Simic Manipulator and Thrun, the Last Troll. Thrun triggered evolve, giving the Manipulator a counter and allowing Kraj to copy its activated ability.
- Kraj attempted to steal Sylvan Safekeeper. Toph sacrificed Sol Ring to Safekeeper targeting itself; Safekeeper gained shroud, the theft ability lost its target, and Earthbend returned Sol Ring tapped.
- At Kraj’s end step, Toph sacrificed Treasure Vault to create two Treasures, providing the disposable artifacts needed for Kuldotha Forgemaster.
- On Turn 7, Forgemaster sacrificed itself and both Treasures to put Storm Cauldron directly onto the battlefield. Kraj had no response.
- Storm Cauldron entering triggered Kodama, which put Staff of Domination onto the battlefield.
- Toph’s effect made Sol Ring a land while it was on the battlefield. Tapping it for two colorless therefore triggered Storm Cauldron, returning it to hand.
- Sol Ring was replayed by casting it as an artifact for one colorless, not by using a land play. Once it resolved, Toph again made it a land; tapping it produced two mana and returned it to hand.
- Each loop spent one colorless mana to cast Sol Ring and produced two before Storm Cauldron returned it, generating one net colorless mana per iteration.
- Infinite colorless mana allowed Staff of Domination to untap itself and repeatedly draw cards. Once Toph demonstrated that it could draw the entire deck, Kraj conceded.
Game Context
Experiment Kraj did not stumble. It accelerated efficiently, cast its commander on Turn 4, established multiple counter synergies, transformed Hadana’s Climb, and reached the point where Kraj could copy Simic Manipulator’s theft ability. Its most relevant attempt to disrupt Toph was answered by Sylvan Safekeeper and the recursive protection created by Earthbend.
The description “Earthbent Sol Ring” requires a distinction. Sol Ring had previously been Earthbent and was sacrificed to Sylvan Safekeeper, after which Earthbend returned it as a new object without its former counters or Earthbend status. During the winning loop, however, Toph’s battlefield effect still made Sol Ring a land in addition to being an artifact. That land typing—not retained Earthbend counters—was what caused Storm Cauldron to trigger whenever Sol Ring tapped for mana.
Once Storm Cauldron and Staff of Domination entered, the infinite-mana and card-draw engine was deterministic as demonstrated. Kraj had no cards in hand at the end of Turn 6 and explicitly had no response to Kuldotha Forgemaster’s activation. ChatGPT recognized the infinite-mana loop when Toph replayed Sol Ring and conceded once Staff made the entire deck accessible.