The List

Goat

Creature — Kithkin Wizard

Chroma — When this creature enters, create a 0/1 white Goat creature token for each white mana symbol in the mana costs of permanents you control.

Springjack Shepherd

Eventide

Enchantment

Chroma — Each creature you control gets +1/+1 for each white mana symbol in its mana cost.

Light from Within

Sorcery

Chroma — Reveal the top ten cards of your library. For each blue mana symbol in the mana costs of the revealed cards, target opponent mills a card. Then put the cards you revealed this way on the bottom of your library in any order.

Sanity Grinding

Creature — Elemental

Chroma — Umbra Stalker's power and toughness are each equal to the number of black mana symbols in the mana costs of cards in your graveyard.

Umbra Stalker

Chroma — {2}, Sacrifice a creature: This enchantment deals damage to any target equal to the number of red mana symbols in the sacrificed creature's mana cost.

Fiery Bombardment

Creature — Elemental Warrior

Haste
Chroma — When this creature enters, it gets +X/+0 until end of turn, where X is the number of red mana symbols in the mana costs of permanents you control.

Heartlash Cinder

Creature — Goblin Shaman

Chroma — When this creature enters, it deals damage to target creature equal to the number of red mana symbols in the mana costs of permanents you control.

Outrage Shaman

Chroma — Reveal any number of cards in your hand. You gain 2 life for each green mana symbol in those cards' mana costs.

Phosphorescent Feast

Trample
Chroma — This creature's power and toughness are each equal to the number of green mana symbols in the mana costs of permanents you control.