mmm i didn't like this elf. elf should be agressive vs goblins, as it was a isen vs gobs. Spider pit should be took down precisely with lancers (2 or 3 hordes if bats) and during that, warriors can take some tunnel (and its ruins). Also rush with single lancers is only justificable if it's happening in 2-3 sides of the map at once, otherwise use mutliple lancers to rush tunnel per tunnel with archer+infantry support, so goblin cannot exit the tunnels and spider riders using bows get shooted by infantry.