Clash of Lords 2 Campaign Clash

The basic strategy in Campaign Clash is to put as many tanks as you can to take the damage then let your long range heroes do the killing. You can avoid those sacrifices on the early stages and save your tanks to reach a higher stage through a minor adjustment.

The idea behind this strategy is to put your base in front of your heroes. I bet some people never thought about that. This way, your enemy's heroes will attack your base first and you won't lose any of yours. Of course, there is a pre-requisite to this tactic. Your heroes must be strong enough (if you are only planning to enter 5 main heroes) to kill all the opponent before it reduces your base's HP to zero. 

The good news is you can still use this strategy with less powerful heroes given that you will have to enter one or more tanks (Pounder, Dark Rider, Blockhead, Demon Slayer, etc...) in your line up. Then once you reach a level that you can't defeat using this strategy, then you go back to the basics. You replace your base's location with a tank hero. Another good thing about this strategy is that you can reach further levels without sacrificing your tanks in the lower stages.

And oh another thing, since you are not entering the Campaign with all 15 heroes (some don't need leveling up anyways) then you can enter "crappy" heroes that you get in raids or hire and let them gain the experience. Then you can fuse these heroes on your main heroes that needs faster leveling.

Summary:

• Enter Campaign Clash.
• Choose your main high DPS (Damage per Second) heroes.
• Enter some "crappy" heroes to maximize experience (DON'T FORGET to LOCK these heroes if you don't have enough space in your hero inventory so you won't accidentally fuse them when you ran out of space.
• Set up your heroes and base locations.
• Reach the level where your base can still take the damage taken from opponent. If you cannot reach the final stage, use a tank hero in the later stages and put your base at the back to protect it.
• Once your are done, click on the Campaign summary.
• Unlock your "crappy" heroes and fuse them to your Epic Heroes.