Ruling Shuckle and Ampharos

[catutie]

ok this situation just happened to me.

i have a Shuckle with 50 damage on it

now my opponent has an ampharos prime on there bench

i attach an energy to the shuckle to use fermenting liquid. would i be able to or would i be knocked out before i get to use it?

 

[King Arceus]

The player whose turn it is gets to decide the order of the effects. If that player chooses to activate Shuckle's Poke-Body first, that player will get to draw a card prior to Shuckle being Knocked out.~Mark