After testing Tearlaments for 2 weeks i think the Danger build is probably the best one in my opinion when the Ishizu cards come out that will change obv. You can gain alot of advantage with the Dangers and they can help mitigate weaknesses of the deck espiacially in the cases where you dont open Reinoheart/Perlereino or have a weird combination of Tearlaments that just dont work together also Mothman is a level 4 and Nessie is Aqua. You can also play King of the Swamp in here searching Poly and having a fusion material that can be any name is verry good but in testing it felt that it clogged up my hand more maybe i just got unlucky In the end the deck is verry RNG based which can sometimes lead to cases where you mill 8 cards and cant Fusion summon because you got cucked by RNG and have to sit on a Tearlament i also tried Pot of Desires in this but i just didnt like it you can add it ofc.
Extra deck is verry flexible with what you can add you can play a good amount of rank 4s im also playing Dweller because in the mirror its a insta pass. For links just use what you like im using Borrelsword because im too poor to buy a accesscode lmao
For the sidedeck you just use what you want. did you know this deck can play deck dev ? yay fun!