Possible Evolutions

[surprise]

Is it possible to start out as an imp and eventually evolve into SpikedFiend with symbol U?

Is it possible to evolve into the lvl 75 uniq dragon with symbol D?

Is it possible to play as B and eventually evolve into the Phoenix monster?

Im kinda bored as a lvl 45 mature prismy cause the prismatic drake is weaker than the mature prismy .

[Gando]

I believe all of those should be possible (except #2) given what Variaz has said of monster evolutions. The unique D is probably not available for playing since that would likely count as an npc. But it might be possible to evolve into more generic Ds.

[Variaz]

The Unique D is unplayable, but there will be level 75 playable versions of Ds in future releases.

Besides that, everything else is possible. B can evolve into the Phoenix, and imps can evolve into Spikefiends.