Hearthpwn

the value, man!

Switching the cost doesnt really matter a great deal on spells 3 mana or less.  You might enable some comedy combo if you get a 0 mana spell and a good 3 mana one, but I just don't see this being a relevant part of this spell.

Discover 2 low cost spells is OK - depends on the pool size for the consistency

The swap cost might help keep tempo... turn 4 do nothing feels bad, but if you can also cast a secret for 1 mana... that feels better. Then you have a extra card if the game goes late enough. 

This is bliss for Open the Waygate decks in Wild 

not really. in quest mage we rely on Coins and bisquits. thats it. brann into "add a coin to your hand" into coin coin into "add a coin to your hand" into coin coin into the naga Commander into coin coin coin coin coin coin :D

probably for spell generation in decks that might reduce cost anyways so the switching of the costs does not matter a lot