Not only is Nashi a cheaper, sleeker Fallen Shinobi, but the ability to freecast from YOUR library opens the potential for control, which hampers other big Ninja payoffs
All currently available sets including every MEGA era box remain at the pre-increase price structure
Having them on a 4/4 artifact creature is awesome enough, but discarding it to I-Rex to end up with a 6/6 commander with all of those abilities, plus draw four cards
There's also a Jumpstart release for this set: themed packs that players can mash together into an instant deck
How To Use Classes Thanks to the "level up" mechanic, Classes are extremely versatile : If you only need the first effect and the mana cost is acceptable to you, you can include the card in your deck just for that effect, and have access to the latter ones if you want them later
Artifact Classic and Artifact Foundry Image Credits: Valve Dota 2 digital card game which is by some standards the biggest Valves flop