Khans mode is a strange sort of mana ramp ability, giving you two green mana to work with in each of your main phases
When you play this spell, you can show a reply to your post and put the named card into your hand as long as you own it
People on the internet have already put a 2 million Euro bounty on this card, roughly 2,158 million dollars
Any Jace that has not used an ability yet can start proliferating
You can pay extra mana to gain extra effects - almost like levelling up in D&D - with the Barbarian Class giving a creature +2/+0 and menace when you roll a die, and its final level giving all of your creatures haste
The Druid is certainly the weakest of the bunch, limiting you to Auras, and only Auras targeting the Druid