User blog comment:Fistful of Force/PSA: Trundle and Nasus DO NOT COUNTER YORICK/@comment-5266525-20120717135306

Putting everything in CAPITALS, bold, underline or italics doesn't make your point any more convincing, just intensely annoying to read. And incredibly forceful.

Yorick's ghouls also trigger Trundle's passive, and have 35% of his max health. So Trundle heals for 0.04 x 0.35 = 1.4% of Yorick's max health about five seconds after he casts an ability. He can also steal Yorick's AD with his Q and in turn reduce the effectiveness of his ghouls in 1v1s. You didn't seriously think Trundle countered him purely from health gained from minion deaths, did you?

Nasus 'counters' him by the dint that he can farm Yorick's ghouls for his Siphoning Strike, and of course a well-farmed Nasus is pretty much gg already. He can't do much against Yorick himself.