Broken Extra Deck dragons come in threes.
Hyoukekkai no Kanreiryuu Trishula / Trishula, Subzero Dragon of the Ice Barrier
Water Dragon / Synchro / Effect
LV11 2700/2000
1 Tuner + 2+ non-Tuner monsters
You can only use this card name’s (2) effect once per turn.
(1) When this card is Synchro Summoned: You can banish up to 3 cards your opponent controls.
(2) If this Synchro Summoned card you control is destroyed by an opponent’s card: You can Special Summon 1 “Trishula, Dragon of the Ice Barrier” from your Extra Deck or GY (but its ATK becomes 3300), then, if your opponent controls any face-up monsters, halve their ATKs and negate their effects.
Hyoukekkai no Shoumashi / Mirror Master of the Ice Barrier
Water Spellcaster / Effect
LV4 1700/1000
You can only use this card name’s (2) and (3) effects once per turn each.
(1) While you control another “Ice Barrier” monster, your opponent cannot Tribute Summon.
(2) You can discard 1 card; Special Summon 1 “Ice Barrier” Tuner from your Deck, also you cannot Special Summon monsters for the rest of this turn, except WATER monsters.
(3) If you would activate an “Ice Barrier” monster’s effect by sending a card(s) from the hand to the GY or discarding, you can banish this card from your GY instead of 1 of those cards.
Hyoukekkai no Sousei / Frost Spirit of the Ice Barrier
Water Sea Serpent / Tuner / Effect
LV1 400/200
You can only use this card name’s (2) effect once per turn.
(1) While you control another “Ice Barrier” monster, monsters your opponent controls lose 500 ATK/DEF.
(2) During your Main Phase: You can send 1 Level 3 or lower “Ice Barrier” monster from your Deck to the GY, and if you do, this card’s Level becomes the sent monster’s Level, until the end of this turn.