Andvari protects his allies from displacement. This blocks Krista and Lars's ability to drag enemies and perform damage.
Jorgen can block Lars and Krista's energy gains and slow them down significantly until the enemy team has enough time to kill them.
As a magic-resistant tank, Rufus is a good pick because he will block Lars and Krista's damage.
If Lars and Krista combined successfully drag the enemies together near Dorian, all enemies will gain Doran's vampirism, thus increasing their chance of survival in the battle.
Krista's primary stat is intelligence, which makes her a perfect target for Cornelius and his Heavy Wisdom skill. Cornelius can strike down Krista with one hit. Krista has a higher intelligence stat than Lars making her Cornelius' first target.
Iris can destroy Krista due to her debuffs.
Corvus' altar can be effective against Krista due to the AoE she performs on the enemy team.
Phobos hits the enemy with the highest magic attack and transfers all gained energy. This can be a great blocker to Krista or Lars because they have one of the highest magic attack stats.
