Coming off a major injury and was horrible in April as he was perhaps shaking the dust off.
In May he's got a 3.84 xFIP with a 12.34 K/9 and a 3.86 BB/9.
Jays only paying the MLB minimum salary, the Braves are paying the rest. Assuming the prospect we gave up was a nobody I like this deal.
EDIT: He's also dominating right handed batters to the tune of a .265 wOBA.