A Basic Pokemon Card of type Colorless with the title Whismur and 50 HP of rarity Common from the set Great Encounters and the flavor text: Usually, its cries are like quiet murmurs.  If frightened, it shrieks at the same volume as a jet plane. It has the attack Mumble with the cost the energy cost 0 and the damage of 10. It has the attack Uproar with the cost Colorless, the energy cost 1 with the description: Flip a coin. If heads, this attack does 10 damage to each of your opponent's Pokemon. (Don't apply Weakness and Resistance for Benched Pokemon.) It has weakness against Fighting +10. 
Whismur