Grading my Heroscape lineup (Budget 400 Points)

[GUILD_WARRIOR]

Without knowing what figures you own I can suggest, since you are in fact only at 390 points, dump Crixus and add Denrick (whom I assume you have since your step brother is using Krug) for 10 more points. This will allow you to bond with the Knights of Weston and give you a double turn. Also Denrick gets plus 2 attack against huge figures (Krug) and if you can hit him with Denrick then the Knights you may be able to take Krug out before he hits back.
Your biggest disadvantage is your opponents range but the base 4 defense helps. Do as Dad_Scaper said and put early markers on Syvarris. Use his double attack to take out your opponents ranged Airborn Elite and get some hits early hits on Krug. Keep the Knights and Denrick at a safe distance until you can reach Krug with both. Then when he is in range move in. If you get 5 consecutive attacks on a hopefully already injured Krug you have a good chance to bring him down. Also look to lure him to any areas where you can potentially get high ground. Keep using Syvarris to draw him in. Also use Syvarris at range in the same way against the Samurai.
Hopefully this helps but as always good dice rolls are the most important part of the game. Even the best laid strategy can fall apart without dice support.
sincerely

Guild_Warrior