Darkin Blade

Equipped creature gets Lifelink and "Whenever
this creature attacks, put a +1/+1 counter on it.
Whenever this creature has 3 or more +1/+1
counters on it, exile it, and transform Darkin
Blade." All +1/+1 counters of the exiled creature
move to Aatrox, World Ender.
Equip {0}
———{line}{line}{line}{line}{line} • {line}{line}{line}{line}{line}{line}{line}{line}
"I feel his hand grip this form and... and his consciousness opens to me!"