Since it leaves the battlefield, it will be summoning sick when it returns, so you can't transform Terra into Esper Terra the turn it reverts
Green, Red, and White destroy target artifact
Theyre just there because theyre the right colors, and have the words roll one or more dice on them, although the card draw is a nice bonus
That said, you've got a 25% chance to get it back each turn by rolling 1 on a d4
The high MSRP (manufacturers suggested retail price) of the set alone makes drafting it prohibitively expensive for most players
This is optional, which means if you have some way of recurring your action cards from your discard, which emerald is very good at doing, then you dont have to take the benefit