Guardian of Faith (Ampersand Promo) [Dungeons & Dragons: Adventures in the Forgotten Realms Promos] Zendikar Rising Art Series You can use this attack

You can use this attack only if the total of both players' remaining Prize cards is 6 or less

Set: Arabian Nights Type: Artifact Rarity: Rare Cost: {6} {2}

Gyarados does 20 damage to itself

follows the normal Fires archetype of playing cheap creatures followed by Fires of Yavimaya and big creatures like Blastoderm or Spiritmonger

you may pay 4 life rather than pay this spell's mana cost

Guardian of Faith (Ampersand Promo) [Dungeons & Dragons: Adventures in the Forgotten Realms Promos] Zendikar Rising Art Series You can use this attackSet: Dungeons & Dragons: Adventures in the Forgotten Realms Promos Type: Creature Spirit Knight Rarity: Rare Cost: {1}{W}{W} Flash Vigilance When Guardian of Faith enters the battlefield, any number of other target creatures you control phase out. (Treat them and anything attached to them as though they dont exist until their controllers next turn.)