Kamura Gunlance

Equip {4}
Kamura Gunlance enters the battlefield with two
shell counters on it
Equipped creature has "Whenever this creature
attacks remove a shell counter from Kamura
Gunlance, this creature deals 4 damage to target creature."
As long as Kamura Gunlance has five or more
upgrade counters on it it gains "Equipped creature
has {1}: add a shell counter to Kamura Gunlance"