This deck's idea is fairly simple, you want to mainly play your X-Men cards so they'll get the trait. The important thing to note is that once you've played 4 X-Men cards the buff will remain even if the cards are bounced, so don't be afraid not to play all of them if you don't have the energy to do so.
Some important things to note:
if you plan on bouncing Wolfsbane, only do on turn 5 (obviously you'll need Beast). The reason for that being the fact that Beast will discount her by 1 thus making your turn 6 that much more powerful. Wolfsbane is one of our biggest powerhouses since she can have a lot of power, especially since we have Elsa and the current imbalance patch to boost her power even further.
always prioritize Elsa over Bishop. While Bishop's power is important the fact that Elsa costs 3 now makes her much more expensive to pull off and we need her power to boost our other cards. In Bishop's case we can always boost his power with Elsa or the imbalance patch buff.
Overall this is a great deck to try out during the imbalance patch since these cards already work really well together.