This SURPRISE MTG Standard Deck Just Hit MYTHIC RANK 1

This SURPRISE MTG Standard Deck Just Hit MYTHIC RANK 1 by player Nithin from Untapped and their Youtube channel    / @nithinm2   They had a 31-5 record on MTG Arena with an updated take on the Izzet Hellraiser combo deck. The deck looks to filter through the deck filling the graveyard for Capricious Hellraiser to free cast big spells like Chandra and most notably Season of Weaving which can make more copies of hellraiser and maximize the free value. Could this be the next top MTg Standard deck to dominate the MTGA ladders with and possibly upcoming RCQ season?

We demoed the deck in 3 matches and have included Nithin's sideboard guide in the link below.

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0:00:00 Deck Tech
0:04:37 Match 1 Gruul Aggro
0:29:06 Match 2 Golgari Midrange
0:35:45 Match 3 Golgari Midrange

Decklist + Sideboard approach https://mtga.untapped.gg/profile/1219...
Deck
2 Unsummon (M20) 78
2 Island (ANA) 3
5 Mountain (UST) 215
3 Shivan Reef (DMU) 255
2 Cavern of Souls (LCI) 269
4 Spirebluff Canal (KLR) 286
2 Fabled Passage (ELD) 244
1 Fires of Victory (DMU) 123
4 Bitter Reunion (BRO) 127
2 Demolition Field (BRO) 260
4 Capricious Hellraiser (ONE) 125
1 Mirrex (ONE) 254
2 Moment of Truth (MOM) 67
2 Chandra, Hope's Beacon (MOM) 134
1 Horned Loch-Whale (WOE) 53
4 Torch the Tower (WOE) 153
3 Brass's Tunnel-Grinder (LCI) 135
3 Ill-Timed Explosion (MKM) 207
4 Thundering Falls (MKM) 269
2 Three Steps Ahead (OTJ) 75
3 Season of Weaving (BLB) 68
1 Artist's Talent (BLB) 124
2 Roaring Furnace // Steaming Sauna (DSK) 230
1 Chandra, Flameshaper (FDN) 81

Sideboard
2 Negate (M20) 69
1 Soul-Guide Lantern (BRR) 54
1 Lithomantic Barrage (MOM) 152
2 Tishana's Tidebinder (LCI) 81
1 Ghost Vacuum (DSK) 248
1 Pyroclasm (DSK) 149
1 Abrade (AKR) 136
1 Scorching Dragonfire (ELD) 139
2 Brotherhood's End (BRO) 128
2 Jace, the Perfected Mind (ONE) 57
1 Virtue of Knowledge (WOE) 76