Any reasons behind the changes? I'd like to hear your thoughts while you were balancing them.
For the first change the dmg is increased by 15 on all lvls because impale is overall a weak spell in its current state.
Then lift time (invunerability) was reduced from 1 to 0.5 to maintain animation. But this actually removes 0.5 seconds of surround time; so 0.5 seconds was also added to the actual stun.
Then its mana cost was lowered from 100 to 90/95/100 to help CL who has mana issues.
Too further assist with this CL is given +1 INT and has beetle mana cost reduced from 30 to 20.
All of this is a massive buff to CL.
Units
Ghouls have weakest hp for tier 1 ground unit. 340hp increasing it to 350 is a good buff. Because now with frenzy they can kill a lvl 3 carrion beetle.
Then adding on magic defense gives them 20% mgc resistance. While they lose around 5% movespeed.
This is because undead ground is now 7% faster anyways. And - 5% movespeed lands them with dk aura 3 at around 22% bonus speed.
Magic defense also stops instant death from most lvl 3 spells.
Aboms changes help them become useful tier 3 attackers rather than just meat sheild. This also buff DL ghoul into abom start massivly.
Then we have dk aura movespeed nerf. From 10%/20%/30% to 7%/14%/21%.
While all undead ground units (excluding shade and acolyte) receive +7% base movement speed.
So reducing the reliance on dk by a little bit. Potentially opening up a DL strat (More realistically) than a CL strat or tavern strat