Borrelend Dragon is the big boss monster of this Deck, providing both powerful defensive and offensive options that'll keep your board safe with a negate effect when you're done with your Guardragon Pisty combo, while being a powerhouse with 3500 ATK, another omni-negate and a Special Summon effect
As a result, the number of cards in the Tekeli-li deck varies based on how many of these weaknesses are in each investigator's deck
series, ARC-V is now here in full with season six now having partial representation, and many more signature monsters have flashy entrance animations, though these are in strong need of user customisation in their appearance frequency
...I really don't know
Considering this card has an acorn holo-stamp, Im not sure in which format you can assemble it with the Tron lands exactly (maybe with the help of the aforementioned Photo Op?), but if you do, you literally have infinite mana to play with, and victory is just a Fireball away!