On the bright side, this Special Energy counts as every type, which makes it easier to set up your best Moves
Frogs for sure have to be near the top of the list of competitive WATER archetypes in Yu-Gi-Oh, with a rich history in this game
Rares Summon: Brynhildr: Its fairly easy to get the card back from this in Limited, and even better if you can trade it off after
Actual creature cards with mana value 3 or less aside (theres 1,500 of them available to white alone, including all-time staples like Esper Sentinel, Mother of Runes, and Loran of the Third Path), practically every creature token has mana value 0, so this represents four cards per turn cycle if you control something like a Tendershoot Dryad
It looks like Base Set
Etali, Primal Storm It requires some protection and building around, but if you manage to attack with Etali, Primal Storm, you can easily outvalue your opponents quickly