(bored voice) "You've activated my trap card."

zgryphon said:

(bored voice) "You've activated my trap card."

More like "You've activated my Shield Trigger."

The commentary has terms in Katakana I can't place, but the first sentence is, "Because it's only contribution is destroying mana and hatred." I can't make sense of some of the terms in the next sentence because it's all shibboleths in a game I don't follow.

Ryuujou is referencing this card: Uberdragon Bajula
Do note that this is the official Wizard's translation, and since there isn't English support for the game anymore I guess we can just roll with the Japanese translation too.