You're playing against your odds here if the druid knows how to play. But, if you manage to catch the druid in line of sight for more than
5 seconds, you've won the match. Basically you must kill the druid here. Have your warlock do all the dps on the enemy warlock while you're staying out of other warlock's range. The moment druid pops up, both of you switch on him. IF you manage to catch him long enough to put all dots up, do shadowbolt, mindblast, shadow word death and shadowburn, you've won the match because deathcoil, spellock and silence disallows him to heal himself. Tough fight nontheless, seeing good druids never allow you to instantly gib them. Fearlock the warlock. However, if druid disallows you to catch him, switch on warlock. Its amazing that NINETY NINE percent of druids are retards and don't heal the warlock's pet. Gib him when he's around 20% hp ( kinda hard if the lock has VST though ), then have your warlock REALLY ready for spell lock on fel domination'd pet summon cast. If you manage to lock it, dispel it asap and you win.