Muk   

RSE & LGFR RBY

MUK Slot 1 Slot 2 Slot 3 Slot 4 Sludge Body Slam Screech Explosion Move Effect Type Pwr Acc Sludge Has a ~30% chance to poison the target. Poison 65 100% Body Slam Has a ~30% chance to paralyze the target. Normal 85 100% Screech Lowers the target's Defense by 2 stages. Normal N/A 85% Explosion The Defense stat of other Pokemon is halved against this attack, essentially doubling the move's base power; causes the user to faint. Normal 170 100%           Other Options: Acid Armor, Mega Drain, other Special moves it can't use (Fire Blast, Ice Punch via tradeback, Thunderbolt) Verdict: Muk is a cool ball of slime but has too many problems to overcome to see use in RBY. The first, of course, is that he is Poison; weakness to Psychic/Ground and lack of good STAB options hurt Muk, although Acid Armor and great HP slightly help the Ground weakness. He also has a pretty shallow Physical movepool, consisting of Normal moves and Sludge, and, while he picks up a few Special moves, he has below average Special; Muk's only notable Special move is Mega Drain, which lets him try to combat Rock/Grounds. At the very least, Body Slam and Explosion are good moves, enhanced by Screech, and Sludge is about the best he can do for STAB. But, please, save Muk for later generations, where he becomes more usable than this.