Tri-Brigade is a theme of Beast, Beast-Warrior and Winged Beast monsters whose critical cards are Link Monsters. Not only can they normally Link Summon, but by banishing monsters from the GY, they can Link Summon. Tri-Brigade monsters also generally have effects that activate when sent to the GY to further advance their game-plan.

DOOD-JP051 Tri-Brigade Arms “Mouser” [Tri-Brigade Arms Mouser]
Link-2 EARTH Beast Link Effect Monster
ATK 1800
Links: Bottom Left; Bottom Right
Materials: 2 Beast, Beast-Warrior, and/or Winged Beast monsters
You can only use the (1)st and (2)nd effects of this card’s name once per turn.
(1) If this card is Link Summoned: You can send 2 “Tri-Brigade” cards with different names from your Deck and/or Extra Deck to the GY, except “Tri-Brigade Arms “Mouser””, also you cannot Special Summon from the Extra Deck for the rest of the turn, except Beast, Beast-Warrior, and Winged Beast monsters.
(2) If this card is sent to the GY: You can target 1 face-up monster on the field; change it to face-down Defense Position.

DOOD-JP068 Tri-Brigade Hammer
Quick-Play Spell Card
(1) Activate 1 of these effects (but you can only use each of these effects of this card’s name once per turn);
● Add 1 “Tri-Brigade” Spell/Trap from your Deck to your hand, except “Tri-Brigade Hammer”.
● Banish any number of “Tri-Brigade” cards from your GY; Special Summon 1 “Tri-Brigade” Link Monster from your Extra Deck with a Link Rating equal to the number banished, ignoring its Summoning conditions, also you cannot Special Summon from the Extra Deck for the rest of this turn, except Beast, Beast-Warrior, and Winged Beast monsters.