Boros Rules Card [Spellslinger] Portal Three Kingdoms Promos the equipped monster's ATK is

the equipped monster's ATK is half its original ATK

puts it on the bottom of their library

"When you have been bitten with fangs of granite

Set: Odyssey Type: Enchantment Rarity: Uncommon Cost: {W} {X}: Testament of Faith becomes an X/X Wall creature with defender in addition to its other types until end of turn

Set: Alpha Edition Type: Artifact Rarity: Uncommon Cost: {1} Whenever a player casts a white spell

Boros Rules Card [Spellslinger] Portal Three Kingdoms Promos the equipped monster's ATK isSet: Spellslinger Type: Card Rarity: Common On Your Turn Begin Untap lands and creatures Draw a card Main Phase Play a land (only 1 per turn) Cast creatures and or sorceries Combat Declare attackers Your opponent declares blockers Combat damage is dealt Main Phase (again) Play a land (if you haven't already) Cast creatures and or sorceries End Your creatures heal Pass the turn to your opponent