User blog comment:CasperNox/Changes for LoL: payment, items, gameplay./@comment-4636093-20120331082441

Harness of the Vindicator: Ludicrously OP (in the nice way) on Singed or even Karma.

I dig it! Power to ya!

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The vampiric rod seems too strong on already strong champions like Ahri,  giving 130AP at full stacks while still giving decent power at no stacks.  the base AP needs to be lowered slightly.

80AP, 15%SV, same passive would give 120AP at full stacks, more than enough for some ludicrous AoE burst mage like Ahri, Annie, Brand or Kennen, etc. to use well while actually being a niche for other champions.