Jordans are still very strong. You can also play mindlessly in the DD neighborhood because as long as you max out the three-star units early on, it will automatically give you 4-cost and 5-cost cards later...

Even without the Hextech with the exclusive 10 Jordans, a four-cost three-star unit can survive a few more rounds, and during these rounds, the three-star Bombers will slowly be upgraded by the dealer...

By the way, when you have a crest, never unlock Little Mage, that's a trap...