New spell-rise of the dead

Cost:lvl1-20000elixer lvl2-25000elixer
Lvl3-30000elixer
Targets-all areas
Damage-0
Train time:45 minutes
Description-This spell was made so that lower TH players could summon up skeletons before the witch is unlocked.
Spell levels-lvl1-spawns 4 skeletons that do 10 damage
Lvl2-spawns 6 skeletons that do 12 damage
Lvl3-spawns 8 skeletons that do 14 damage
Spell factory level: lvl2
Lab level 2/3/4
Upgrade costs
Lvl 1 N/A
Lvl 2 120000
Lvl 3 170000

Every time spell is upgraded adds 500 elixer to the cost

Spell color-white and black

Please leave what you think!!!

Lower town halls Dont need skeletons, barbs can be used instead. Also I don't get how it's put in at LVL 2. I mean, Does that mean my lvl4 spell factory goes to Lvl 5 without me spending elixir?