World Legacy - "World Key"

You can discard 1 "World Legacy" card; you can Tribute Summon 1 monster during your Main Phase this turn, in addition to your Normal Summon/Set. (You can only gain this effect once per turn.) At the start of the Damage Step, if this card battles an opponent's Link Monster: You can return that monster to the Extra Deck.

You can only use each effect of "World Legacy - "World Key"" once per turn.

From Yu-Gi-Oh! Trading Card Game.

Open the interactive version on https://mythscribe.cloud/app/tcg/cards/cms6nu2ul70fqsb1i63lw3ui5.