The latter is basically just as good in this deck, given that Cerulean Wisps can start your combo
The only thing is that, as it happened in the case of Charizard vs Radiant Heatran, we will need to decide between Astral Radiances Radiant Greninja (drawing cards) or Radiant Blastoise (putting damage counters) when building our water-type decks from now on
Triton Calvary gives you enchantment-hate heroism in return-to-hand form, which look, Id rather have destruction or exiling, but that would probably need another color splashed onto this
In its day it towered over other similar choices and even when it was brought back years later it was competitive
Carnivorous Death-Parrot, Vile Bile, The Fallen Apart, Paper Tiger, Scissors Lizard, Rock Lobster, Double Header These Un-cards are considered mainly for pauper cubes since their power to toughness isnt special in cubes that allow for rares, but four power and a decent toughness for four is actually pretty hard to find outside of a few cards like Rhox Brute, Wildheart Invoker, and Windrider Eel (which is actually a 4/4)
Naya colors already have access to one of Magics best-ever Commanders in Jetmir, Nexus of Revels