Then for each nontoken permanent attached to it, create a token that's a copy of that permanent attached to that creature
I half-expected the designers to omit staples like Kumena, Tyrant of Orazca or Svyelun of Sea and Sky to encourage spending a little more on upgrades, but most merfolk mainstays are already present, plus a few surprise reprints like Branching Evolution and Thassa, God of the Sea
A riff on Boldwyr Intimidator, Gornog, the Red Reaper turns enemy creatures into cowards, and your attacking warriors get stronger the more cowards are on the other side
However, since the effect targets only one creature, it may be less effective in a deck that wants a wide board
Consider, Mijae Djinn from Revised is typically worth around a buck