Syrlya's form warps through magic just as the tail's about to strike him, and instead it goes through as if he isn't there. It spares him getting knocked around--and he doesn't have a lot of good ways to get around thick hide, so even just a cut is encouraging enough that he should try and wedge that wound more open...

Of course, then there's a fireball exploding and that throws off his focus. Stray flames flick against his shield from the proximity and he looks up to find--damn it, Strange.

He's going to have to reconsider his approach a little, if he can't keep the wyvern's focus. So instead he gestures to place magic wells under it in quick succession, hopefully before it flees: one to slow it down, and the other to strike it with painful raw magic for the seconds that the clocks tick down.