My information may be outdated since the last time I tried this was in Alpha.
This is without abilities
Spearton > Ninja
Allbowtross > Archidon
Allbowtross > Spearton
Allbowtross > SwordWrath
Allbowtross > Ninja
Allbowtross > Miner
Allbowtross > Meric
Lolz
Anyways I'll get serious now
4 Speartons = Full Giant
12 SwordWrath = Full Giant
SwordWrath = Archidon
Spearton = 3 SwordWrath
Majikill is a bit hard to measure because using controls will change its potential damage.