Shadow Showdown

Common :

 * Peashooter
 * Cabbage-pult
 * Dragon Fruit
 * Chomper ( Does not effect Master Shadouu~ību-nushi )

Uncommon :

 * Melon-pult
 * Kung-fruit
 * Devourer

Rare :

 * Wall-nut
 * Tall-nut
 * Pumpkin
 * Doom-shroom ( Also doesn't effect him )
 * Jalapeno ( Does not effect him either. )

Super Rare :

 * Cowboy Peashooter
 * Torchwood
 * Summer Melon
 * Winter Melon
 * Spike Pea

Epic :

 * Black Napalm Torchwood (Only if there are Peashooting plants )
 * Atomic-shroom ( 1000 damage to him )
 * Robo Pea
 * Metal-nut

Beyond Epic :

 * Toxic Garlic ( Doesn't effect him too )
 * Spike Gatling Pea ( Only if there are Spike Peas )

Almost Unachievable :

 * RP2.0

Probably Find :

 * Zombie

Common :

 * Ninja Zombie
 * Pogo Zombie

Uncommon :

 * Ninja General
 * Ninja Assassin
 * Ninja Elf ?

Rare:

 * Shadow Zombie
 * Martial Arts Zombie
 * Samurai Zombie

Super Rare :

 * Samurai General
 * Martial Arts Master
 * Jack-in-the-box-Zombie

Epic :

 * Killer Elf?

Beyond Epic :

 * Giga Imitater Zombie

Almost Unfindable :

 * Giga Gargantuar

Boss:
Master Shadouu~ību-nushi