Hero card

Vow to Erebor

Instant

SpellUsed once: what it does depends on when you cast it

Needs: Equipment, Valiant, Dwarf

Gives: Equipment, Spells

Not in winning lists yet: read from the card text and the graph

Build a deck with Vow to Erebor as the hero

Makes it work

Falcon's Wing Harness · Iron Hills Stalwart · Slash of Light · Stolen Uniform · Thorin, Mountain-king · Iron Man Armor · Rover Blades · Dáin Ironfoot

Benefits from it

Splashy Spellcaster · Besotted Knight · Spellbook Vendor · Eagle's Rescue · Merry Bards · Charmed Clothier · Conceited Witch · Ferocious Werefox

Use instead if you don't have it

Slash of Light · Cosmium Blast · Sudden Strike · Mabel's Mettle · Disenchant · Keep Out

Cards in the meta that answer it

Countersculpt (Azorius Control) · Inevitable Defeat (4-Color Control) · No More Lies (Azorius Control) · We Say Thee Nay! (Dimir Aggro)