guardian cards yugioh PHNI-AE103 Gate of Wind and Water (SR) – TCG Corner If this card is Fusion Summoned by a Spell Card or effect Guardian Kay'est - Yugipedia

As such this just falls into the camp of being bad compared to cheaper cards that do the same or better without learn

This card cannot be activated while "Vanity's Emptiness" is applying

To fill out the rest of your deck, there are also four 10-card booster packs from the Sword & ShieldDarkness Ablaze expansion

Legendary Creature Artifact - Robot Recursion (CTRL to add secondary) Removal Removal (CTRL to add secondary) Tokens Soundwave, Sonic Spy More Than Meets the Eye (You may cast this card converted for .) Whenever one or more creature tokens you control deal combat damage to a player, exile target instant or sorcery card with mana value equal to the damage dealt from their graveyard