Monastery Mentor Monastery Mentor, one of the best prowess cards in Magic, has been a great card in many formats all the way up to Vintage, where the sequence of casting it as fast as possible using fast mana and following up with free spells like Mox Sapphire and Gitaxian Probe makes Mentor one of the biggest threats in the format
Its incredibly satisfying to turn whatever horrible commander someone else is using into a bug, and we recommend doing it as often as possible
Deck Overview
It can serve as a game-ending play by stealing opponents' creatures and attacking with them
Luckily it has built-in protection
When it comes to the three-color combos, Mardu, the identity of black, red, and white is often regarded for its speed and aggression, also having access to many of the best removal spells within the entirety of Magic