Combining the ⛨ and AT Field counter works very well. However she has ups and downs because she is a large member, so you may trip over obstacles and such. Also she only guard on what is BEHIND her, so make sure to put her in front. Once her stats are high enough, your Eva units are impenetrable. Equipped with the N2 Missile makes her deal large damage but in a rather tiny radius. Don't let the awesome explosion effect deceive you.
Rolling Evangelion Slot 1.0
-Can be Equipped with N2 Missle (Craft/Equip this by clearing the Eva collab stage 30 times). Ups stats x1.5 and changes attack to a suicide attack. Like other suicide attackers she cannot die, comes back every battle, and activates on contact.