All Rock-Type monsters on the field gain 500 DEF. "Triamid" monsters on the field cannot be destroyed by card effects. If this face-up card in the Field Zone is sent to the Graveyard: You can target 1 "Triamid" monster in your Graveyard; add it to your hand. You can only use this effect of "Triamid Fortress" once per turn.
![Triamid Fortress [TDIL-EN062] Common | Game Master's Emporium (The New GME)](http://thenewgme.com/cdn/shop/products/38a2d23f-a09f-5492-aae2-d3ae9433dc82_74e142eb-a76b-4426-9787-d4974272fe94.png?v=1707449405)
