Two mana doesnt always tax the opponent enough, and while cycling is nice , the cost makes it less efficient than other options
P/T Number 313 Language English Legal Formats Brawl, Commander, Competitive Brawl, Historic, Legacy, Modern, Pioneer, Timeless, Vintage Not Legal Formats Alchemy, Pauper, Standard Rulings (2/5/2021) A creature has been dealt excess damage if one or more sources deal more damage to it than the minimum amount of damage required to be lethal damage
If you happen to destroy your own Alligator with its effect, your opponents Kaiju disappears too
Simba Future King lets you get the combo cards you need
Cosmic Eclipse #166 (Eevee) has Diglett listed as a cameo but there is no Diglett there or any cameos for that matter
The problem I find is that against decks like Black-Red Midrange and Blue-Red Phoenix, they have enough removal and card advantage to answer everything you have