Card of the Week Contest#478: When the Moment Is Right

Corrupter of Profits 
Creature--Demon
Flying, trample, lifelink
Ward—Pay an amount of life and mana each equal to Corrupter of Profits’ power.
Your opponents can cast spells without paying their mana costs.
Whenever a player casts a spell, if no mana was spent to cast it, that player loses life equal to that spell’s mana value.
Pay X life: Counter target spell with mana value of X if no mana was spent to cast it.
Whenever a spell resolves, if no mana was spent to cast it, you gain an amount of life equal to half that spell’s mana value, rounded up, then put that many +1/+1 counters on Corrupter of Profits.
6/6

I'm not sure this works. If you use the reinforce ability, the only thing that goes on the stack is the ability (what's in the reminder text). The card itself is discarded as the cost. So the When is never seen, as the card is in the grave and is not tied to reinforcing.

Edit: Hmm... Cycling is worded the same way. Maybe it does work. Nvm.

Edit 2: 702.29c Some cards with cycling have abilities that trigger when they’re cycled. “When you cycle [this card]” means “When you discard [this card] to pay an activation cost of a cycling ability.” These abilities trigger from whatever zone the card winds up in after it’s cycled.