Helix Pinnacle [Eventide] Fiend/Synchro/Effect You can only activate 1

You can only activate 1 "Spellbook of the Master" per turn

Set: OTS Tournament Pack 5 Card type: Effect Monster Rarity: Ultimate Rare Attack: 1200 Defense: 400 During either player's turn: You can target 1 Beast-Warrior-Type Xyz Monster you control

Whenever a creature you control of the chosen type enters the battlefield or attacks

Set: From the Vault: Relics Type: Artifact Rarity: Mythic Cost: {5} {T}

Set: Portal Three Kingdoms Type: Legendary Creature — Human Soldier Warrior Rarity: Rare Cost: {3}{R}{R} Horsemanship (This creature can't be blocked except by creatures with horsemanship

Helix Pinnacle [Eventide] Fiend/Synchro/Effect You can only activate 1Set: Eventide Type: Enchantment Rarity: Rare Cost: {G} Shroud (This enchantment can't be the target of spells or abilities.) {X}: Put X tower counters on Helix Pinnacle. At the beginning of your upkeep, if there are 100 or more tower counters on Helix Pinnacle, you win the game.