How has this been working out for you? I've got my own Ashling deck that's more focused on Voltroning her up, so she doesn't kill herself or me in the process.
A few cards you might want to look into:Repercussion , particularly if you've got Quest for Pure Flame charged or the Furnace of Rath out can do tremendous amounts of damage. If you blow Ashling for 3, each creature and player takes 6 damage, and then each player takes a further 12 damage for every creature they have out. It's brutal, and can end stalemated games surprisingly quick.
Platinum Emperion Keeps you from killing yourself - even if he dies from Ashling's blast, he's on the board when the damage is applied, so you take none from her explosion.
All of those are great suggestions. I just kind of threw this deck together without too terribly much thought and haven't built it at all in real life. I can tell it needs quite a bit more work and your suggestions are probably where i will start. Thank you.
Get kiki jiki in there,,, he's ever-so-useful and a few pieces of equipment/ enchantments that can stop ashlings self destruction to an extent e.g. slagwurm armor and furor of the bitten. It'd be good to toy with a few of the innistrad vamps on this one too with their +1+1 counters... heck curse of the stalked prey would be amazing in edh, suddenly there's a one time offer for +1+1 counters while creatures attack a player