If the dire bear is to strong just build a 6 stone foundation, 10 stone walls and a ramp. Then just attract the bear and run into the thing, you need a lot of tranq arrows or darts (maybe 95) attach them on your bow and shoot, until it's knocked down feed it raw mutton, giant bee honey, prime meat or superior kibble then bam! Free winnie the pooh. Make sure to delete ramp so nothing can go in the pit and attack it while it's down.