14 cards where the colors ≤ RW and the text includes “bolster”

Abzan Advantage (Fate Reforged #2)
Abzan Skycaptain (Fate Reforged #4)
Anafenza, Kin-Tree Spirit (Commander Masters #11)
Aven Tactician (Dragons of Tarkir #6)
Dragonscale General (Fate Reforged #11)
Dromoka Captain (Dragons of Tarkir #12)
Echoes of the Kin Tree (Dragons of Tarkir #15)
Elite Scaleguard (Commander Masters #22)
Enduring Victory (Dragons of Tarkir #16)
Gleam of Authority (Dragons of Tarkir #19)
Honor's Reward (Fate Reforged #14)
Sandcrafter Mage (Dragons of Tarkir #33)
Scale Blessing (Double Masters 2022 #27)
Unsanctioned Ancient Juggler (Unfinity Sticker Sheets #13)

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