Pugdra

Trample, Hydra blood (this creatures regenerate
ability doesn't work if the creature dealing damage has {r} mana in its mana cost)
Regenerate- when this creature is dealt damage
unless the damage would destroy it it gets +1/+1
for double the amount of damage dealt
this creature starts with {x} +1/+1 counter on it
where {x} is the amount of mana spent to cast it