Skirk Drill Sergeant (Elves vs. Goblins) [Duel Decks Anthology]

Skirk Drill Sergeant (Elves vs. Goblins) [Duel Decks Anthology]Set: Duel Decks Anthology Type: Creature Goblin Rarity: Uncommon Cost: {1}{R} Whenever Skirk Drill Sergeant or another Goblin dies, you may pay {2}{R}. If you do, reveal the top card of your library. If it's a Goblin permanent card, put it onto the battlefield. Otherwise, put it into your graveyard. "I order you to volunteer."

were usually enough to encourage a more practical outlook

During the collision of the shards

Set: Mirrodin Type: Artifact Creature — Construct Rarity: Uncommon Cost: {6} Flying

where X is the number of age counters on Cover of Winter

you may cast this spell without paying its mana cost

destroy each nonland permanent without a fate counter on it

When Malfunction enters the battlefield

Set: Urza's Legacy Type: Enchantment — Aura Rarity: Common Cost: {2}{U} Enchant creature

Set: XY: Steam Siege Type: Colorless Rarity: Rare Retreat cost: 0

Set: Core Set 2019 Type: Instant Rarity: Common Cost: {2}{W} Destroy target artifact or enchantment

Set: Guildpact Type: Creature — Griffin Rarity: Uncommon Cost: {5}{W} Flying

Set: Beta Edition Type: Enchantment Rarity: Uncommon Cost: {2}{B} White spells cost {3} more to cast