tap COT for 2 colorless use two colorless for grim monolith tap grim for 3 colorless play arcane signet play springleaf with 1 floating tap rog and springleaf for a red use red and tap blood crypt for Breach crack foothills for a badlands Tap badlands for rain of filth exile misdirection, wooded, arid sac blood crypt and city for 2 black play scalding tarn and crack it for Underground Sea two black for cabal ritual exile city, scalding, and blood crypt use 1 black for demonic consultation exile flare, praetors, rain and flip until hitting chain of vapor tap Underground Sea for chain bouncing springleaf drum sac usea to continue the chain and bounce rog sac badlands continue chain to bounce plat angel replay rog and use a black floating going down to 2 to play spring leaf tap leaf and rog to add a blue and arcane for another blue play thassa hold priority on etb play DC from grave with black floating and exile usea, demonic counsel, and badlands GG

1. Tap City of Traitors for 2 colorless + red from Blood Crypt 2. Cast Underworld Breach, leaving one colorless floating. 3. Play Scalding Tarn, sacrifice it and Wooded Foothills to fetch Badlands and Underground Sea; City of Traitors goes to the graveyard. 4. Cast Demonic Counsel using the colorless mana and black from Underground Sea, exiling City of Traitors, Scalding Tarn, and Wooded Foothills; keeping priority, cast Flare of Duplication (escaping by exiling Cabal Ritual, Rain of Filth, and Misdirection from the graveyard) targeting Demonic Counsel. 5. The copy of Demonic Counsel resolves (graveyard now has a sorcery, instant, land, and creature) and you find Lion's Eye Diamond The second Demonic Counsel resolves and finds Brain Freeze 5. Cast Lion's Eye Diamond, crack it for 3 blue, cast Brain Freeze from the graveyard targeting yourself with one blue mana floating, then repeat the loop a couple more times using LED with black mana to tutor and find Otawara, the Soaring City to channel for Platinum Angel or chain of vapor.

Here is the challenge winning line: Tap city float 2c play scalding tarn - sacs traitor crack scadling and foothills get badlands and underground sea cast grim monolith of 2c floating from city tap monolith for 3c and bloodcrypt for r cast breach floating 2c cast cabal ritual tapping badlands using one of the c floating exiling scalding, city and foothills. You now have 5b and 1c floating. cast imperial seal putting chain on top. 4b and 1c floating use 1c and 1b to cast arcane signet. 3b floating recast cabal ritual using 2b and exile imkp seal, praetors grasp and rain of filth. 4b floating use signet and usea to cast thoracle putting chain to the bottom. 4b floating cast demonic consultation off the 4b exiling arid mesa, flare and misdirection name chain of vapor. exile all library put chain to hand. 3b floating. cast spring leaf drum off 3b. 2b floating tap thoracle and drum. 2b and 1u floating. cast chain. targeting thoracle, sac land target arcane signet, sac land target drum, sac land target angel. 2b floating. cast cabal ritual exiling badlands, underground sea and blood crypt. 3b folating. Cast arcane signet. 1b floating Cast springleaf drum. 0 floating. Tap drum and rog, tap arcane signet. 2u floating cast thoracle win.

1. float city of traitors mana 2. play grim monolith 3. fetch for voclanic island, play scalding tarn and fetch for underground sea (city goes to gy) 4. float 3 colorless from the monolith, pay 1 colorless and a red (blood crypt) for breach 5. use 1 floating colorless to play springleaf 6. exile city of traitors, scalding tarn and arid mesa to put demonic counsel on the stack, tapping rograkh for black and using one colorless floating 7. hold priority casting flare of duplication sacrificing rograkh and exiling misdirection, rain of filth and cabal ritual, targeting the demonic counsel. You will have foothills, grasp, demonic consultation and rog in gy, enabling delirium 8. tutor for chain of vapor and mox opal 9. play opal, float blue; float blue and black from volcanic island and underground sea 10. cast chain of vapor targeting monolith, sac a land, copy to target mopal, copy to target drum, copy to target the plat angel (you now have no lands) 11. play monolith with the floating mana (you have now 0 floating), cast drum and signet with floating colorless, play mopal 12. play thassa with mana from mopal and signet and with etb on the stack tap it with springleaf to cast consultation form graveyard, exiling demonic counsel, chain of vapor, flare. It should work, right?

issues with other lines are: you cant alt cast flare with breach since they are both alternate costs if cards location in library is unknown it isnt deterministic to cast decon as it could exile your chain