Inescapable Blaze

This spell can't be countered.
Inescapable Blaze deals 6 damage to any target.

Mountain

Incendiary Flow

Incendiary Flow deals 3 damage to any target. If a creature dealt damage this way would die this turn, exile it instead.

Magma Jet

Magma Jet deals 2 damage to any target. Scry 2.

Shock

Lightning Strike

Lightning Strike deals 3 damage to any target.

Roil Eruption

Kicker {5} (You may pay an additional {5} as you cast this spell.)
Roil Eruption deals 3 damage to any target. If this spell was kicked, it deals 5 damage instead.

Fiery Inscription

When Fiery Inscription enters the battlefield, the Ring tempts you.
Whenever you cast an instant or sorcery spell, Fiery Inscription deals 2 damage to each opponent.