Delver of Secrets into Insectile Aberration

[Entromancer]

Once I flip a Delver into Insectile Aberration, will he return to the "Delver side" at the end of my turn? Also, what is the bare minimum of spells you'd recommend for a deck running 4x Delver?

[kombatkiwi]

Once I flip a Delver into Insectile Aberration, will he return to the "Delver side" at the end of my turn? Also, what is the bare minimum of spells you'd recommend for a deck running 4x Delver?

No, he stays 3/2 flying mode permanently (until he leaves the battlefield, anyway)

The second part of the question is not rules related and you would have a better response if you asked it in a more appropriate part of the forum

[menace13]

Also, what is the bare minimum of spells you'd recommend for a deck running 4x Delver?

25+ seems right. RUG runs 18 lands, 12 creatures, 30 spells.