Forge Hammer and Bramble Slam Support

Bramble Slam support can be socketed into this skill but does nothing.

No Brambles appear on hammer impact, nor on creating the fissures via warcry.

Other slam support i tried works fine(aftershock II).

Also when aftershock II does proc, war crying and creating the fissures will apply aftershock II again and trigger fissures a second time. Dont think thats intended as fissures are not a slam, but are slammable.