Circular Logic (Dave Humpherys) [World Championship Decks 2003] SPA Atizacorazones vulshok Set: Planechase Anthology Type: Sorcery

Set: Planechase Anthology Type: Sorcery Uncommon Cost: {2}{G}{G}{G} Creatures you control get +3/+3 and gain trample until end of turn

They only specify the consequences should you fail

Set: Mercadian Masques Type: Creature — Dryad Common Cost: {1}{G} Forestwalk (This creature can't be blocked as long as defending player controls a Forest

Set: Magic 2013 Type: Sorcery Common Cost: {U} Look at the top five cards of your library

Set: Tenth Edition Type: Creature — Bear Rarity: Common Cost: {1}{G} "We cannot forget that among all of Dominaria's wonders

Circular Logic (Dave Humpherys) [World Championship Decks 2003] SPA Atizacorazones vulshok Set: Planechase Anthology Type: SorcerySet: World Championship Decks 2003 Type: Instant Rarity: Uncommon Cost: {2}{U} Counter target spell unless its controller pays {1} for each card in your graveyard. Madness {U} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)