After that turn is completed, you get another turn, which is ideal for counterattacks
Whenever you cast a spell with power, toughness, or loyalty equal to the chosen number, target artifact or creature becomes an artifact creature with base power and toughness X/X until end of turn, where X is the chosen number
This provides versatility in your play strategy so you can ward off stronger creatures on your opponents board by equipping these utility artifacts that have been turned into equipment to a creature
The highlight of the set is the new special energy card, which allows for all new tactics and strategies
You don't expect someone to do that in Commander, but it looks like this isn't a universally powerful tactic for just any MDFC commander deck
Fenrir is almost everything you'd want in a card: It is a beater that can close out the game, it can act as disruption and it is also a very powerful form of removal