You control at least two other nontoken creatures.
You have the highest life total.
Notable Prerequisites
You are currently venturing in "Tomb of Annihilation" in the "Veils of Fear" room.
Mana Needed
({4} magic symbol) ({W} magic symbol) available.
Steps
Cast
Lumbering Battlement by paying its mana cost.
When
Lumbering Battlement enters, it and
Radiant Solar trigger.
Resolve the
Lumbering Battlement trigger, exiling
Radiant Solar and two other nontoken creatures until
Lumbering Battlement leaves the battlefield.
Resolve the
Radiant Solar trigger, venturing into the "Sandfall Cell" room, causing you to sacrifice
Lumbering Battlement and each opponent to either sacrifice a creature, artifact or land or lose 2 life.
Lumbering Battlement leaves the battlefield, returning
Radiant Solar and the two other nontoken creatures from exile to the battlefield.
Radiant Solar and the two creatures enter the battlefield, triggering
Radiant Solar three times.
Resolve the first
Radiant Solar trigger, venturing into the "Cradle of the Death God" room, creating a 4/4 The Atropal legendary creature token, and completing Tomb of Annihilation.
Sefris' second ability triggers, returning
Lumbering Battlement from your graveyard to the battlefield.
When
Lumbering Battlement enters, it and
Radiant Solar trigger.
Resolve the
Lumbering Battlement trigger, exiling
Radiant Solar and two other nontoken creatures until
Lumbering Battlement leaves the battlefield.
Resolve the
Radiant Solar trigger, venturing into the "Trapped Entry" room of the Tomb of Annihilation, causing each player to lose 1 life.
Resolve the second
Radiant Solar trigger from step 6, venturing into the "Veils of Fear" room, causing each player to lose 2 life unless they discard a card.