Mastershake wrote:I assume "moreovan" is Morvahna
Are you actually having trouble or just looking for Theorymachine?
Long story short, the enemy caster has trash stats. Snipe on the MHSF and Ravyn's feat should be an easy assassination unless he plays the caster back (like in another ZIP code back) or keeps a ton of sac pawns and fury. Even then if he's transferring damage from an ARM 13 caster, his beasts aren't going to be in great shape and will be easy prey for the other ranged units. The beasts themselves aren't terribly threatening and a round of concetrated fire should drop any, even moreso if Lady A casters her damage buff. Frankly it seems like you have a distinct edge in this fight. Just play up and force him to either risk his caster or cede board control.
While nominally sound, I'd disagree with your general assessment. While the MHSF is likely to get a few good licks in against the caster, with all of Movahna's defensive tricks she'll likely survive, and (played well) would be extremely unlikely to give a hole for anything else to hit her through. Overextending the MHSF will likely sign it's death sentence, not to mention the fact that you'd probably have to move Ravyn fairly far forward to hit your MHSF with her feat would likely put her in a pretty bad position, too. Even with the Invictors as a screening element, a hard punch from some beasts would leave you wide open. My personal advice would be to keep a small, but hard hitting, flanking element in reserve to break past their small infantry complement when a chance presents itself, but that opens itself up to it's own host of problems.
Not that your suggestion doesn't have merit, just pointing out how I'd counter it. The problem with theorymachine is that no matter how great a plan you think you have, what matters more is how you adjust for your enemy's reaction. No plan survives first contact with the enemy and all that.