Draconic Slagforging

Draconic Slagforging deals X damage to target creature or planeswalker. If a permanent dealt damage this way dies this turn, Forge +1/+1. (Put a +1/+1 counter on target Equipment. While it has that counter, it
has "Equipped creature has all effects of counters
on this artifact.")
"And they wondered why dragonfire swords
never shattered."