Blazing Sunsteel

Bracket

• B1 Exhibition — Not in the same deck as its two-card combo partners: Wayta, Trainer Prodigy, Polyraptor, Barbed Servitor, Vrondiss, Rage of Ancients, Metropolis Reformer, Raptor Hatchling, Raphael, Ninja Destroyer, Sporeweb Weaver, Sculpting Steel, The Mycosynth Gardens, Zalto, Fire Giant Duke, Mirage Mirror, Overgrown Armasaur, Phyrexian Metamorph, Clever Impersonator, Mirrormade, Copy Artifact
• B2 Core — Not in the same deck as its two-card combo partners: Wayta, Trainer Prodigy, Polyraptor, Barbed Servitor, Vrondiss, Rage of Ancients, Metropolis Reformer, Raptor Hatchling, Raphael, Ninja Destroyer, Sporeweb Weaver, Sculpting Steel, The Mycosynth Gardens, Zalto, Fire Giant Duke, Mirage Mirror, Overgrown Armasaur, Phyrexian Metamorph, Clever Impersonator, Mirrormade, Copy Artifact
• B3 Upgraded — Not in the same deck as its early two-card combo partners: Wayta, Trainer Prodigy, Polyraptor, Barbed Servitor, Vrondiss, Rage of Ancients, Metropolis Reformer, Raptor Hatchling, Raphael, Ninja Destroyer, Sporeweb Weaver, Sculpting Steel, The Mycosynth Gardens, Zalto, Fire Giant Duke, Mirage Mirror, Overgrown Armasaur, Phyrexian Metamorph, Clever Impersonator, Mirrormade, Copy Artifact
• B4 Optimized — allowed: No restriction beyond the banned list
• B5 cEDH — allowed: No restriction beyond the banned list

Why

• Two-card combo with Wayta, Trainer Prodigy, Polyraptor, Barbed Servitor, Vrondiss, Rage of Ancients, Metropolis Reformer, Raptor Hatchling, Raphael, Ninja Destroyer, Sporeweb Weaver, Sculpting Steel, The Mycosynth Gardens, Zalto, Fire Giant Duke, Mirage Mirror, Overgrown Armasaur, Phyrexian Metamorph, Clever Impersonator, Mirrormade, Copy Artifact (early with Wayta, Trainer Prodigy, Polyraptor, Barbed Servitor, Vrondiss, Rage of Ancients, Metropolis Reformer, Raptor Hatchling, Raphael, Ninja Destroyer, Sporeweb Weaver, Sculpting Steel, The Mycosynth Gardens, Zalto, Fire Giant Duke, Mirage Mirror, Overgrown Armasaur, Phyrexian Metamorph, Clever Impersonator, Mirrormade, Copy Artifact)

How Lotus Vault estimates a bracket

Bracket: Lotus Vault analysis, with Commander Spellbook flags

Combos

18 known combos, 17 of them two-card.

• Wayta, Trainer Prodigy + Blazing Sunsteel
  Produces: Infinite damage
  View on Commander Spellbook
• Blazing Sunsteel + Polyraptor
  Produces: Infinite damage, Infinite creature ETB, Infinite creature tokens
  View on Commander Spellbook
• Blazing Sunsteel + Barbed Servitor
  Produces: Infinite damage, Infinite lifeloss
  View on Commander Spellbook

Combos: Commander Spellbook

Rulings

• 2020-11-10 · Wizards of the Coast
  A creature can be dealt an amount of damage greater than its toughness. For example, if the equipped creature has 1 toughness and is dealt 3 damage, it deals 3 damage, not 1, to the chosen target.
• 2020-11-10 · Wizards of the Coast
  If your life total is brought to 0 or less at the same time that the equipped creature is dealt damage, you lose the game before Blazing Sunsteel's middle ability goes on the stack.
• 2020-11-10 · Wizards of the Coast
  Blazing Sunsteel is the source of the middle triggered ability, but the equipped creature is the source of the damage. For example, if the equipped creature is green, that ability can't target a permanent with protection from red, but it can target one with protection from green, though the damage would be prevented.
• 2020-11-10 · Wizards of the Coast
  Opponents who have left the game aren't counted by Blazing Sunsteel's first ability.

Rulings: Scryfall · Wizards of the Coast