Explorer Boros Heroic

Made it to Mythic with 4 days to spare...
This season saw Nykthos enter the card pool. I hit a wall hard at Diamond and really struggled to break through it. Mono Green Nykthos Devotion helped me get halfway through, but the meta adapted and Boros Heroic became powerful because the top decks are now light on removal.

Companion
1 Jegantha, the Wellspring (IKO) 222

Deck
4 Monastery Swiftspear (BRO) 144
4 Favored Hoplite (THS) 13
4 Illuminator Virtuoso (SNC) 17
3 Tenth District Legionnaire (WAR) 222
3 Dreadhorde Arcanist (WAR) 125
4 Gods Willing (STA) 7
4 Defiant Strike (WAR) 9
4 Reckless Rage (RIX) 110
2 Invigorated Rampage (KLR) 132
2 Sejiri Shelter (ZNR) 37
4 Homestead Courage (MID) 24
4 Ancestral Anger (VOW) 142
1 Plains (ELD) 250
3 Battlefield Forge (BRO) 257
4 Inspiring Vantage (KLR) 283
4 Needleverge Pathway (ZNR) 263
4 Sacred Foundry (GRN) 254
1 Eiganjo, Seat of the Empire (NEO) 268
1 Mountain (ELD) 263