How do I…
How do I get Damage from Spike.
What is the expected result
Player Should Get Damage while Touches Spike.
What is the actual result
Player Walks thru Spikes and nothing is Happening.
…i guess something is wrong here…
If that are your conditions to get hit by the spike why to check if player is dead?
I mean he’s not dead …yet… 
…(or you may want a negation…like if fireknight is not! dead)
also i guess your dead knight animation “take hit” should be a consequence (action)…not a condition…i would remove it from the conditions (same for the fire knight is dead.)
Also you should use trigger once where needed