You'll want to look into the Israel's Inheritance purple offense plus the newest David promo for the offense unless you're ok using GoC disciples as your purple. Disciples get most of their power from being clay but they all have purple as well.
Palegreen hasn't seen a lot of strong support recently, but it is playable, especially if you pair it with orange. There is a lot of synergy with magicians and demons. The most recent support for palegreen is Egyptians which look nice and strong when you read the cards and what they do but they don't pack the punch in actual play to be very strong.
The nice thing about purple and palegreen is that there are a few dual alignment cards that are purple/palegreen so you'd be able to use them for either offense or defense.
