Red has no problem playing cards from exile or finding fun ways to play cards from your opponents' decks, but going through more of your deck than one card per turn is a challenge
This Legendary creature often does not get the recognition it deserves , having the power to heal and dispel nightmares, as well as shield those around it from harm
If you cast a Mistcutter Hydra for X=6, it enters with six +1/+1 counters
Archmage of Runes solves this nicely, allowing you to just play ritual style cards to generate increasing amounts of mana while having enough remaining cards to keep playing them
This last ability has become very popular, as players combo it along with other cards such as Scurry Oak, creating infinite creature tokens and putting infinite +1/+1 counters on Scurry Oak
It was a perfect card to run in Standard and elsewhere