Ursarctics tribute level 7 or higher monsters in hand to summon themselves (during either players turn), this allows for some amazing disruption in spell/trap disruption during the opponents turn one, including hard countering new blue eyes! (poping true light before they can link 1)
when gaia is tributed, he summons any black luster soldier, meaning you can literally summon a black luster soldier during your opponents turn! And he can banish from graveyard for ritual cost!
also if you can get a level 8 and a level 7 ursarctic on the field you can synchro into polar star and disable your opponents entire extra deck!
super poly is for removal but the deck itself is relatively poly-proof mainly because it only runs one dark monster and no dragons!
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