This is not some washed-up Watt deck from 2011; this is a blind-second OTK deck that can win vs some of the most oppressive board states in modern Yugioh. Either inflict 8000 damage with Watts or break the board enough to get a Mystic Mine out. This deck can easily OTK without removing Mystic Mine from the field, and Mystic Mine can allow you to use the high-risk Left Arm Offering.
3 card OTKs:
- Interrupted Kaiju Slumber + Honest/Leeching The Light/Instant Fusion + Wattsquirrel/Wattwoodpecker/Wattrain
4 card OTKs:
- Kaiju + Wattsquirrel/Wattwoodpecker + Leeching The Light + Wattkey/Wattrain
The deck is also fairly consistent thanks to Small World and Mystic Mine-protected Left Arm Offering.
The side deck is to switch strategies into a going first deck. The goal is to get out Zap Mustung, Mystic Mine, and Ojama Trio. Lock your opponent out of attacking, monster effects, and special summoning. Wattchimera is the win condition here.