Certain cards will also gain oil counters, though these seem to function as a set-specific resource similar to energy from Kaladesh whose use differs depending on whats on the table
$1.99 Combat Research Dominaria United $1.49 Tandem Lookout Avacyn Restored $0.49 Risky Shortcut Aetherdrift $3.49 Coruscation Mage Bloomburrow $2.79 Electrostatic Field Guilds of Ravnica $4.99 Gitaxian Probe New Phyrexia $1.79 Hydroelectric Specimen Modern Horizons 3 $8.49 Helm of the Ghastlord Shadowmoor $15.99 Ophidian Eye Time Spiral $2.49 Dizzy Spell Ravnica $3.49 Frantic Search (Borderless) Commander Masters Variants $4.49 Sigil of Sleep Urza's Destiny 0 results found
If you can make copies of this creature, you might be able to win big in Commander
Plus, those cards are exiled, so you'll never have to deal with them again
There are several ways cards care about artifacts and enchantments, but the most common is a Threshold 1 mechanicwhere a card powers up if you control a single artifact or enchantment
Even if the cost of the spell or ability that waterbend is part of increases or decreases, you still may only tap artifacts or creatures to pay for costs up to the amount of the generic mana in the waterbend cost