Primal Expansion Hydra

Burgeon (At the beginning of your upkeep
put a growth counter on this permanent.)
If damage would be dealt to Primordial Growth
Hydra while it has a growth counter on it, prevent
that damage and remove a growth counter from Primordial Growth Hydra.
Primordial Growth Hydra's power and toughness
are equal to the number of growth counters on it
plus 1.