Yes, as long as the artifact is colorless or matches the color identity, you can include it in your deck
Enchantment - Aura Color tag templates(None) Aqueous Form Enchant creature Enchanted creature can't be blocked
For 5 mana though this is probably a fairly niche card, unless you're running a very specific kind of deck or going to take advantage of enchantment token generators
When you tap a Forest for green mana, that is a mana ability
Create a 1/1 white Spirit creature token with flying for each card type among cards discarded this way
The prospect of Black Panther alongside Doubling Season, which, in theory, could take advantage of that cards doubling counter feature twice (once when the counters are first made on the land and next when a counter is placed on the creature) terrifies me