Aquaman vs Ironman

Aquamarine has the trident and the magic water hand, Tony has extremis armor.

1) on land
2) under water.

done to death

arthur wins with water hand

on land or in water

Tony on land.
Arthur underwater.

Ironman could pull wins if he uses his versatility. If he fights like he typically does though Aquaman wins.

If Aquaman fights like he typically does, Tony doesn't need his armor for him vin