Defencive Troops And Spells

With poison killing most cc troops now and most people using dragon and loons which die easily I think there should be troops make purely for defence. Ones that if used against a style of attack could crush it.
More like defencive heroes I guess

Dragon slayer - unlocked at th7/8 - guy with long spear - massive damage to dragons - low health but strong health against splash damage troops

Rock Crusher - unlocked at th9 - guy with massive hammer - large damage to golem

Sniper - stays back shooting oncoming enemy with balls of slow

This sort of thing =)

Spell could be preloaded to a area for wars. Like a slow circle preset at attacker can not see until Troop activates it.

Or preloaded poison that could be moved once attacked in war to get people changing their base a little ready for that reattack

Make a golem trap or 4 normal traps together can trip a golem would be interesting

A formation you could choose for cc troops to come out

Scatter
Charge
Hold back
50/50

Also seems silly archers charging they normally stand be hide walls to attack and back off to each level