These would be a great starting point especially if you could tune them to your preference with the pool of Standard cards
If you're looking for a more aggressive deck that can fill the board with lots of cheap characters, including the Seven Dwarfs, Tactical Teamwork has plenty of go-wide potential, with more than a few combat tricks up its sleeve too
Temur Battlecrier Temur Battlecrier is passive ramp that scales with the amount of big creatures you control
Activate only as a sorcery.) Whenever this creature attacks, another target creature attacking the same player or planeswalker gains flying until end of turn
The important thing, as always, is to remain flexible in your assessments and to position yourself to learn as fast as possible, but learn soft and fast, not hard and fast keep your positions flexible, as even once youve learned something you may find that your understanding was incomplete and you may still need to unlearn it again and learn something else.
Merfolk have just 9402 decks over at EDHREC.com, which is a top 20 archetype at 17, but pretty low considering how often they were played in the old days