Whirlwind [Urza's Saga] Dwarf Soldier You can only use this

You can only use this effect of "Barricadeborg Blocker" once per turn

Set: Khans of Tarkir Type: Sorcery Rarity: Common Cost: {7}{U} Delve (Each card you exile from your graveyard while casting this spell pays for {1}

but we do not lack for ammunition

Set: Dimension of Chaos Card type: Pendulum/Effect Monster Rarity: Common Attack: 0 Defense: 0 If this card is Normal or Special Summoned: You can activate 1 of these effects

Whirlwind [Urza's Saga] Dwarf Soldier You can only use thisSet: Urza's Saga Type: Sorcery Rarity: Rare Cost: {2}{G}{G} Destroy all creatures with flying. Urza tried to rule the air, but Gaea taught him that she controlled all the elements.