Gaedu Xhan, Talons of Winter

Gaedu Xhan, Talons of Winter cannot attack alone unless it is the only creature you control.
You may sacrifice any number of creatures before your combat phase to ignore this and grant Gaedu Xhan, Talons of Winter +1/+1 until end of turn for each creature sacrificed this way.
When you sacrifice a creature, all Samurai gain Trample until end of turn, and all your opponents lose 1 life.
"Ice is cold, but Death is colder"