Insect Beatdown isn't much competitive in the meta
With the current card pool, it is quite difficult to construct a strong Insect-Type monster theme-deck. Although his signature card in the anime; “Great Moth” has very powerful stats, summoning condition is too hard to meet.
Get him to acquire a "foul" skill
The "Parasite Infestation" skill that Weevil acquire at Lvl 20 is a unique and that is based on Yu-gi-oh anime episode of Weevil vs. Joey during Battle City arc. Although it is a very useful skill that messes up with opponent’s drawing hand, but the amount of Parasite Paracide entering into opponent’s deck are random (from 1-3 cards). It is suggested for a control deck that depends on effect damage from “Parasite Paracide” to include “Jade Insect Whistle” card into the deck. → Parasite Infestation: deck recipe
Almost half of the duel reward card from Weevil are "Great Moth” set combo. It could be said that most of “SR” rarity “Great Moth” set received from him are quite useless. If the player does not have any interest in constructing Great Moth theme-deck, it is suggested that player should spend the gate key on other legendary duelists instead of him.
Note: More skills are expected! Report Skill name and details by submitting comments or screenshot at the bottom of the page.
Insect Uprising You can use the skill when you control 3 or more Insect-type monsters. Decreases the ATK of face-up attack position monsters your opponent controls by 800. You can only use the skill once per turn.
Draw Sense: Low Level Can be used each time your Life Points decrease by 1800. In the Draw Phase, istead of doing a normal draw, draw a level 1-4 monster card.
Weevil Underwood is a master of insect deck. He has a real ability of the card game as he won a victory at National Championship but has a bad personality. His character came out when he threw Yugi's Forbidden One cards into the sea.
Personally, I just LOVE the fact that they made a skill specifically to help Weevil get out the Great Moths. The fact that there are so many cards that would let your cocoon survive for that long (S Kuriboh, Security Orb, Mask of Restrict, Windstorm, Half Shut, Mirror Wall and more) makes it vaguely feasible (though not so much in upper-tier duels). The only thing is, I think that if you actually summon Perfectly Ultimate Great Moth, that you deserve an animation. They gave one to Vampire Lord, so clearly PEUG deserves one as well.