#1 - June 24, 2013, 7:13 a.m.
"Costs (1) less for each damage your hero has taken."
Now if you read that with zero interpretation it actually means that any time you're hero takes damage whatsoever will cause the cost of Molten Giant to be less equal to that damage.
No where on the card does it say that damage has to stay on your hero . . .
Interesting thought isn't it?
Think of it this way. Imagine a paladin has 22 health. This means that he has taken Eight Damage and thus the cost of the molten giant is 12. He would still have taken this Eight damage even if he where to cast a card like Lay on Hands to heal himself up to full and thus the cost for the molten giant would still be 12.
I think people have been treating the wording of Molten Giant wrongly. The amount of damage your hero has taken NEVER goes away unless you get a new hero through summoning Lord Jaraxous.
This means that despite whatever healing your hero may get that the cost of the molten giant remains permanently lower each time you're damaged because it only says (I quote again):
"Costs (1) less for each damage your hero has taken."
and it says nothing about having to remain damaged.
