Avatar: The Last Airbender Eternal

Experience

Azula, Ruthless Firebender

Legendary Creature — Human Noble

Firebending 1 (Whenever this creature attacks, add {R}. This mana lasts until end of combat.)
Whenever Azula attacks, you may discard a card. Then you get an experience counter for each player who discarded a card this turn.
{2}{B}: Until end of turn, Azula gets +1/+1 for each experience counter you have and gains menace.

Card

Tataru Taru

Final Fantasy Art Series

Final Fantasy Commander

Treasure

Legendary Creature — Dwarf Advisor

When Tataru Taru enters, you draw a card and target opponent may draw a card.
Scions' Secretary — Whenever an opponent draws a card, if it isn't that player's turn, create a tapped Treasure token. This ability triggers only once each turn.

Marut

Battle for Baldur's Gate Art Series

Commander Legends: Battle for Baldur's Gate

Artifact Creature — Construct

Trample
When this creature enters, if mana from a Treasure was spent to cast it, create a Treasure token for each mana from a Treasure spent to cast it. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.")