There's already fairly high upside reanimating an opponent's creature at instant speed, but you can eek even more value out of Conscription by firing it off in response to an opposing reanimation effect
For example, once creatures are summoned, there is a rule called summoning sickness which basically means they cant be used to attack that turn
It kind of closely resembles Card not found quite often, but than it just becomes so much more, when you are able to get it online
The life gain as a win condition strategy is not a horrible backbone for a deck either
These cards appear only once in every 144 booster packs, starting with the Zendikar Expeditions series
This iconic artifact transforms a single mana investment into a permanent two-mana advantage every turn, creating explosive openings that can determine entire games