Scion is creature type exclusive to Eldrazi tokens. It was introduced alongside Processor in Battle for Zendikar and means "descendant".

Creature Type
(Subtype for creature/kindred cards)
Introduced Battle for Zendikar
Last used Modern Horizons 3 Commander
Scryfall Statistics
24 token creation cards
Colorless mana 20.8% Blue mana 20.8% Black mana 12.5% Green mana 37.5% Multicolored 8.3%

Similar to Spawns, Scions are colorless and can be sacrificed to add Colorless mana, and are primarily generated by black and green mana cards. Unlike Spawns, Scions are 1/1 instead of 0/1 and have blue-mana generators rather than red.[1]

Notably Scion of Ugin, Scion of Darkness, Scion of Oona, Scion of Vitu-Ghazi, Scion of the Ur-Dragon, and Teysa, Orzhov Scion do not have the Scion type.[2][3]

Tokens

Token name Color Type line P/T Text box Source Printings
Eldrazi Scion   Creature — Eldrazi Scion 1/1 Sacrifice this creature: Add  .
Playtest cards
Token name Color Type line P/T Text box Source Printings
Eldrazi Scion   Creature — Eldrazi Scion 1/1 Sacrifice this creature: Add  .
Eldrazi Squirrel Scion   Creature — Eldrazi Squirrel Scion 1/1 Sacrifice this creature: Add   or  .

References