Unown [A]

Their shapes look like hieroglyphs on ancient tablets. It is said that the two are somehow related.

Pokemon Power — Anger: Whenever 1 of your Pokémon with Unown in its name uses its Hidden Power attack, that attack does 10 more damage for each damage counter on Unown A. If you have more than 1 Unown A in play, use only 1 Anger for each attack.

Hidden Power (10)