Zeradias, Herald of Heaven (UTR) (FOTB-EN018) - Force of the Breaker Unlimited Condition:Lightly Played Card TextActivate only when a

Card TextActivate only when a monster is Special Summoned to your opponent's side of the field

except "Gladiator Beast Darius"

also you cannot Special Summon monsters from the Extra Deck for the rest of this turn

Level / Rank0

Zeradias, Herald of Heaven (UTR) (FOTB-EN018) - Force of the Breaker Unlimited Condition:Lightly Played Card TextActivate only when aTypeFairy Effect Monster AttributeLIGHT Level Rank4 ATK DEF2100 800 Card TextYou can discard this card to the Graveyard to add 1 "The Sanctuary in the Sky" from your Deck to your hand. If this card is on the field but "The Sanctuary in the Sky" is not on the field, destroy this card.