[Chase] (Pokémon Power)
As long as Unown [C] is your Active Pokémon, whenever your opponent's Active Pokémon tries to retreat, flip a coin. If heads, put 1 damage counter on that Pokémon. Apply Weakness and Resistance.
Hidden Power
Cost: Psychic (10)
It is believed that the variety of types of this Pokémon were created by evolutionary adaptation, as each possesses a different ability.