Link, Master Sword Weilder

Vigilance
Whenever a creature an opponent controls that
was dealt damage by this creature dies this turn,
put a legend counter on this creature. Then if
this creature has seven legend counters on it,
remove them and create an artifact equipment
token called Master Sword with "Equiped
creature gets +5+5 and has double strike and intimidate and Equip {7}" and attach it to this creature.