Praos, The Warbringer

When this creature transforms into Praos,
The Warbringer, gain control of all Hydras.
Hydras you control attack each combat if able.
Attacking Hydras you control have Double Strike
and Trample.
If damage would be dealt to a Hydra you control,
put that many +1/+1 counters on it instead.
"...unless they want blood!"