Knight of the living dead

[kpic13]

Knight of the living dead appears to be broken. He is armored which means he takes one less damage when you start with at least 2 against him. However, I have seen numerous times where a 2 or 3 damage character dies zero damage against him. 

Example: A wall nut with a 3 damage and a peanut with a 2 damage. No damage was done.....

This has been going on for months

 Please fix.

Thank you

[Kermo3]

Knight is armored 2, so plants with 3 damage do actually only 1 damage to him and plants with 1 or 2 damage doesn't do any damage.