Serpent of Yawning Depths [Secret Lair Drop Series] Human Bear it doesn't activate [Security] effects

it doesn't activate [Security] effects on Option cards it checks

Set: Sun & Moon: Guardians Rising Type: Psychic Rarity: Rare Retreat cost: Colorless

1 Unbreakable Formation

Each artifact you tap after you're done activating mana abilities pays for {1}

Set: HeartGold & SoulSilver: Call of Legends Type: Water Rarity: Ultra Rare Retreat cost: Colorless

Serpent of Yawning Depths [Secret Lair Drop Series] Human Bear it doesn't activate [Security] effectsSet: Secret Lair Drop Series Type: Enchantment Creature Serpent Rarity: Rare Cost: {4}{U}{U} Krakens, Leviathans, Octopuses, and Serpents you control can't be blocked except by Krakens, Leviathans, Octopuses, and Serpents. Fear not heightstrue monsters lurk in the depths.