Soul's Attendant

Whenever another creature enters, you may gain 1 life.

Soul Warden

Whenever another creature enters, you gain 1 life.

Network Disruptor

Flying
When Network Disruptor enters, tap target permanent.

Cathedral Sanctifier

When Cathedral Sanctifier enters, you gain 3 life.

Overwhelmed Apprentice

When Overwhelmed Apprentice enters, each opponent mills two cards. Then you scry 2. (Look at the top two cards of your library, then put any number of them on the bottom and the rest on top in any order.)