Glass-Cast Heart (Extended) [Innistrad: Crimson Vow Commander] SPA Cortarraices de Lagrimaerrante {1}{R}: Ill-Tempered Loner gets +2/+0

{1}{R}: Ill-Tempered Loner gets +2/+0 until end of turn

and their blood will be my mortar

When Keldon Battlewagon attacks

return Deal Damage from your graveyard to your hand

Lesson learned

Glass-Cast Heart (Extended) [Innistrad: Crimson Vow Commander] SPA Cortarraices de Lagrimaerrante {1}{R}: Ill-Tempered Loner gets +2/+0Set: Innistrad: Crimson Vow Commander Type: Artifact Rarity: Rare Cost: {2}{B} Whenever one or more Vampires you control attack, create a Blood token. {B}, {T}, Pay 1 life: Create a 1 1 white and black Vampire creature token with lifelink. {B}{B}, {T}, Sacrifice Glass Cast Heart and thirteen Blood tokens: Each opponent loses 13 life and you gain 13 life.