Esper Terra is a version of the heroine of Final Fantasy 6 and one of the first Saga creatures, a new card type combination introduced in the set, which switches back and forth between normal hero and pumped-up esper (think summons or guardian forces in other FF games) for some turns
That said, were definitely not optimistic about things getting cheaper anytime soon
I'll lastly add that there are few better commanders to pick for an Hare Apparent deck, if you just want to overwhelm your foes with a lupine legion
Very occasionally you will see it in white or black to give them a bit more of a threatening stance
For example, in our newest set Azurite Sea , the theme was seafaring adventure
The heart of this deck is Dire Fleet Warmonger, which lets you sacrifice a creature at the beginning of combat to give it an extra +2/+2 and trample until the end of turn