The ability is not a mana ability
Facilier Charletan Uncommons: Moana Chosen By The Ocean, Beast Hardheaded, and You Have Forgotten Me Rare or above: Maleficent Uninvited (Rare), and Lady Tremaine Wicked Stepmother (Rare) Foil: Pumbaa Friendly Warthog (Common) Another standard pack with the 2 Rares and Common Foil
You can tap any untapped creature or artifact you control to pay a waterbend cost, even one you haven't controlled continuously since the beginning of your most recent turn
1 Charizard (Shadowless) - Base Set Charizard is one that unfortunately just can't help but dominate every list
Not only does Screaming Nemesis have Haste, but it can reflect damage to wherever you choose
Some people will say that's a simple example, but as we are working with Quandrix, numbers are of the essence and by then you might even have a bunch of higher-impact creatures out