Hammers are all about building and spending rage, which is acquired any time a hammer user attacks or is attacked. When a rage meter fills up, a player becomes enraged and can do super-charged attacks that do extra damage and throws out additional effects.
Meanwhile, blades occasionally generate chi when used. Five doses of chi transforms your blade into a spirit blade, doing extra damage for a short period of time. Chi can continue to be accrued while in spirit blade form.
STOP… pic.twitter.com/iHKWs08gnl
— Secret World Legends (@SecretWorldLgds) June 7, 2017
Push the cutting edge! Learn about Blade's Speciality: Spirit Blade pic.twitter.com/rch9x153tJ
— Secret World Legends (@SecretWorldLgds) June 6, 2017
Source: Twitter #1, #2