Its not hard to engineer Psychic Frog kills alongside Prowler, with Frog gaining Flying by exiling just three cards from your yard
Even better, when creatures your opponents control attack other opponents, their power gets doubled, meaning that this creature turns board states into potential game-ending situations
By the time your enemies are casting Consecrated Sphinxes and other bombs, you should easily have enough lands to effectively make this a Terminate
and while it is entirely possible to use Tuvasa as a merfolk lord in name only, she has taken off far more as an aura or enchantress deck
Another great creature land, this one becomes a beefy creature that can either load your graveyard or threaten to mill out your opponent The creature might not be quite as impressive as the others, but the fact it can buff something else generally means it can open up a good attack for another creature too This creatures hard to block and lets you rummage