Blizzard's Tower Defense 0 leak run with Cenarius - Warcraft 3 The Frozen Throne

The strategy in short:
1. Build 2 glaive towers and max them out.
2. Sell all your towers during wave 3 when you have 35 gold. That should get you to 50+ gold. Some creeps might still be alive, that's ok.
3. Buy Cenarius and kill off wave 3. Focus on crit chance and finger of death abilities.
4. Buy the second and the first hero towers in that order, place them near the gate, where the paths converge. Focus on blade throwing, stun, and summon wolves abilities.
5. Manage your hero and towers to kill next few waves. Buy the poison blade and the helmet that boosts attack rate. Save gold for jailer
6. Buy jailer, research cold and booster towers. Eventually cover most of the track with cold and boosters for slowing effect, starting from the gate. 8-10 of each should be enough.
7. Skip poison, lightning, fire, water entirely. Save gold for the last builder, buy her and place a few death towers (the ones with splash) near your hero towers. Fully upgrade them.
8. Use hero's ultimate ability to clear the forest in the middle of the map, place as many assassination towers as you can afford and max them. From there they should cover most of the map. Make sure they are affected by booster buffs.
9. Keep doing step 8, waves up to 49 included should be easy. The last one is a little tricky mostly because of balrog. Use the finger of death on him, target him with towers as well if needed. The phoenix and archimonde might require some attention as well. The demon lord usually is no problem, he dies halfway.
With this strategy you can confidently win every time, and with a little practice you can do 0 leak runs