less to cast for each green creature you control.
TrampleNo reference price for this printing yet: not enough stores to make an average.
Run a comparison: we query the stores live, it may have arrived this morning.
If an effect (such as the one from Lodestone Golem) imposes an additional generic mana cost to casting Khalni Hydra, the Hydra's ability will reduce it too. It'll reduce the amount of green mana you need to spend first, though.
2010-06-15 · Wizards of the CoastFor the purpose of determining the cost reduction, the number of green creatures you control is checked as you cast Khalni Hydra, before your last chance to activate mana abilities to pay for it. For example, if you control Wild Cantor (a red and green creature with the ability "Sacrifice Wild Cantor: Add one mana of any color.") as you cast Khalni Hydra, first the cost to cast Khalni Hydra is reduced by {G}, then you could sacrifice Wild Cantor for mana to help pay for it.
2010-06-15 · Wizards of the CoastKhalni Hydra's cost reduction effect doesn't change its mana cost or mana value.
2010-06-15 · Wizards of the Coast
Chimera Gaming · Condition MP
Red Riot Games · Condition LP
