Tsunade, the 5th

Whenever another creature you control dies you may pay {2}{r}{w}, if you do put a Healing Jutsu counter on Tsunade, the 5th
Tsunade the 5th gets +1/+1 for each Healing Jutsu counter that is on it
When Tsunade the 5th has 10 or more Healing Jutsu counters, it gains Lifelink, Trample, Double Strike