Drill Sergeant

Drill Sergeant
UnitSoldierCost: 3ATK: 3 HP: 3
Whenever you play a unit from your hand, put a +1/+1 rune on this.
Remove a +1/+1 rune → Put a +1/+1 rune on another unit.
BluePeace Tech II

Card-Specific Rulings
Playing a spell from your hand that summons units such as Murkwood Allies or Summon Skeletons does NOT count as "playing a unit from your hand." — Sirlin
Using a spell or ability to "put a unit into play" from your hand does not count as "playing it from your hand." — Sirlin