He rushed radiance first, continued to go full potato after.
Honestly despite bottom lane getting completely womped on by a solo Undying due to how2stunstack and bad rotations you guys were bad at closing out the game. Then you built a battlefury and we were pretty sure we could win it easily.
Had your team bought those WIP hexes before 4/5 of us had BKB maybe you would have won it but damn those are some questionable item builds.