It unfortunately really took a hit from the last few sets I believe, but Quad Snorlax was a fun deck awhile back. PlS Snorlax + Hypnotoxic + Virbank, add in a few Max Potions and hope for an opponent who can't get around it.
I am not sure about this, but I think that any rogue or budget deck can be a "troll deck" really. A rouge deck or a budget deck becomes a troll deck when you take it to play people with competitive decks and hope to get the people with competitive decks angry or upset when you get the win over them. Hence you are trolling competitive players.
Seismitoad/Tasting Slurpuff
PlasmaVees (I've been playing it for a while and the look on top tier deck players when they lose to it is priceless)
Unlimited Format: Anything that pretty much makes XY Aegislash invincible.