Talk:Tiamat/@comment-4579700-20120615150105/@comment-4068613-20120616085229

I don't think that Spikes will proc tiamat's splash. In fact, I'm almost certiain of it.

On-hit effects don't proc tiamat, only the attacks themselves. Secondary effects of auto-attacks will not proc tiamat, unless they themselves are considered auto-attacks (such as Shyv's Twin Bite, which actually is a whole bunch of simultaneous auto-attacks, despite being an ability).