I'm guessing you would need a druid and a beastmaster working together to pull this off.
Opening:
R1: Beastmaster casts lair in his corner. (4) Druid casts and treebonds with vine tree in her corner. (10)
R2: Beastmaster deploys a steelclaw cub (11). Quick summons a cub then regular summons a cub. (3) Druid deploys two vine markers (19) then summons Fellela (7) and casts brace yourself on her (5).
R3: Druid deploys 2 vine markers (14) and deploys an extended wall of thorns around corner (3). Fellela casts a trap or a decoy somewhere (2) and Druid casts another brace yourself on her if necessary.
Beastmaster brings out three more steelclaw cubs. (2)
Beastmaster deploys a matriarch and casts another brace yourself on fellela if necessary.(0)
Once youre ready, use thornlashers to knock enemy mage into teleport traps to bring them to corner zone, where your bears will maul them. Alternatively, if you can't summon all the bears, try having the druid summon kralathor and eat the ones that aren't being used much.