Meltdown [Urza's Saga] San Diego Comic-Con 2013 you may reveal a Treefolk

you may reveal a Treefolk card from your hand

Set: The List Type: Creature — Tiefling Rogue Rarity: Rare Cost: {3}{B} Whenever one or more creatures you control deal combat damage to a player

if there is no monarch

Set: Legends Type: Enchantment Rarity: Rare Cost: {1}{B} If a player would draw a card except the first one they draw in their draw step each turn

Set: Outlaws of Thunder Junction Type: Legendary Creature — Demon Mercenary Rarity: Mythic Cost: {2}{B}{B}{R} Flying

Meltdown [Urza's Saga] San Diego Comic-Con 2013 you may reveal a TreefolkSet: Urza's Saga Type: Sorcery Rarity: Uncommon Cost: {X}{R} Destroy each artifact with converted mana cost X or less. Catastrophes happened so often at the mana rig that the viashino language had a special word to describe them.