31 cards where (the text includes “damage” and the text includes “each creature”) and the colors is R and (the card is available on Paper) and the mana value = 3

Anger of the Gods (Double Masters 2022 #102)
Barrage of Boulders (Khans of Tarkir #100)
Bloodfire Infusion (Apocalypse #57)
Brotherhood's End (The Brothers' War #128)
Crush the Weak (Kaldheim #128)
Delayed Blast Fireball (Commander Legends: Battle for Baldur's Gate #676)
Desert Sandstorm (Portal Three Kingdoms #107)
Falling Star (Legends #145)
Fire Juggler (Morningtide #90)
Flamebreak (Darksteel #61)
Flame Sweep (Core Set 2020 #139)
Gates Ablaze (Ravnica Allegiance #102)
Goblin Chainwhirler (Dominaria #129)
Impending Flux (Doctor Who #87)
Into the Fire (March of the Machine #144)
Jaya Ballard, Task Mage (Time Spiral Remastered #172)
Kindle the Carnage (Dissension #66)
Komainu Battle Armor (Neon Dynasty Commander #21)
Magma Vein (Odyssey #203)
Radiant Flames (Dominaria United Commander #126)
Rolling Temblor (Commander 2019 #151)
Rupture (Nemesis #97)
Savage Alliance (Eldritch Moon #140)
Scalding Salamander (Exodus #100)
Seismic Rupture (Dragons of Tarkir #156)
Shake the Foundations (Rivals of Ixalan #113)
Slagstorm (Mirrodin Besieged #75)
Steam Blast (Urza's Saga #219)
Sweltering Suns (Amonkhet #149)
The First Eruption (Dominaria #122)
Volcanic Fallout (Commander Legends #418)

Their mind whirled with grand plans, never thinking of what might happen if they got to the end of the list.