Whatever. Go my owls.
Wave 1: Build everything and as many owls as you can. Use TB on p2 to drop mana to finish building the rest of the owls. Try to max out Buff Beam.
After that, just do builder Guardian + TB, aiming TB at Hint 2. On last wave, pull out 2x Huntress and 2x Squire G.Summoners.
If your stats are lower, you could replace 1 owl for an Obelisk and 2 web walls (one for each lane). If using Obelisk, place your stack closer to hint 3 so Obelisk can hit both lanes.
I got 8:00-9:00 combat times with this. Very AFK.