The Quickbeasts race in the Grand Prix as a diplomatic overture to Avishkar
Of course, you'll want some haste enablers in play to do essentially make Old Gnawbone free, but the creatures you already have in play can generate Treasure as well
It can't be combined with other alternative costs, such as casting a spell "without paying its mana cost." (2018-07-13) To determine the total cost of a spell, start with the mana cost or alternative cost (such as a miracle cost) you're paying, add any cost increases, then apply any cost reductions
As for the ability where defenders gain exalted, I don't think it can be utilized much with 'Phelddagrif,' which lacks evasion
Once youve built a chivalrous board, you can transform Dion into Bahamut, Warden of Light to finish things off
These tips on deckbuilding are guidelines, not set-in-stone rules