Effect
During either player's turn, if your opponent Summoned 3 or more monsters this turn: You can Special Summon this card from your hand. If Summoned this way, it is unaffected by other cards' effects, but loses 500 DEF during each player's Standby Phase.
The monster effect of "Tri-Brigade Kerass" is a Quick Effect that activates in the hand.
It does not target.
It cannot be activated during the Damage Step.
The effect "This card Special Summoned by this effect is unaffected by other cards' effects, also its DEF decreases by 500 during each Standby Phase" is an effect applied to the "Tri-Brigade Kerass" itself that was Special Summoned by its own monster effect.
The process of "its DEF decreases by 500 during each Standby Phase" does not create a Chain Link.
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