Rabadon's Grimoire
Cost: 3200
Build: 
+ 
+ 1000 gp
AP: 75 Mana: 300 CDR: 10%
UNIQUE Passive - Spell Haste: Each time a spell hits an enemy champion lowers your non-ultimate abilities Cool downs by 1s
ModWulf Helhammer4 votesHow is that any way similar to Rageblade?
Also, Rageblade is a hybrid item, which means it's both AD and AP
Tahminatrix 2 votesI think he means a spell version of getting extra hits for free / phantom hit.
But even then it would make more sense to call it an ap version of 
5050BS1 votesYa you are right. Was thinking of a way to get extra "auto attacks" for a spell caster.
I guess a better way would be like Arcane Comet. Basically every other spell cast makes the target explode for 20% AP.
Cocho1 votesap rageblade would be like ludens, if it only stacked in fights, and stacked faster the more procs you got off in one fight
WeeWeeBojangles1 votesLOL imagine cassiopiea with this. Her E would go from throwing a handful of sand at her opponent to firing a laser.
Titanium701 votes
Yep, no problem, great Item design.