I found I won with this most of the time. The goal is just to stay one card ahead of the NPC.
Play Squall north-west to start.
Twins are played centre if they can take Shiva > Warden is then played either east or south to reclaim twins.
Lyna and Lucia are then used to take back warden and keep the one card lead going.

If twins don't take Shiva then play them centre if they can take Ultima Weapon and then proceed from above - if not then place them south east and try and keep the lead.

Warden is just a card that could be replaced by most things that could take the twins and then could be taken by Lyna.