Skywarp

Teleportation is a dangerous tool in the hands of a capable adversary. Thankfully for the Autobots, Skywarp is the only Decepticon known to possess that ability. Skywarp's not terribly bright, to the point where he's practically worthless as a warrior without direct and constant supervision. Left on his own, he's much, much more likely to use his amazing teleportation power to pull off really immature pranks on anyone close by, be it enemy or "friend". He takes a charmingly puerile angle at thuggery, so his pranks are well-received amongst his Decepticon peers (except the victim, of course). Because, come on, a surprise push down a staircase is hilarious.