Level 50

This is the fifth boss you will fight. The boss is a buffed Dolphchamp.

Strategy
The boss of this level compared to LOTA in Level 40 has much more health, a bit more power, but slower speed. He has a pretty low damage output besides Storm and some PER. Completing this level shouldn't be much of a challenge. You can easily destroy this stage with Prince Charmless, but there won't be a strategy written since it is very self-explanatory.

Strategy 1 (no Epics or Legendaries)
Monsters: LaCroc, Nereida/Tarzape, Mudflow

Moves: LaCroc needs Smash, Mudflow needs Avalanche Strike

Runes: LaCroc needs 3 Strength; Mudflow needs 3 Speed

What to do:

Let LaCroc abuse Smash. Against every enemy in this level it should deal a lot of damage. Don't let Mudflow do any denying until the last wave. Nereida or Tarzape can be used to heal your team. Do the same process with the Sparkwedges in the second wave. Once you reach the final wave, let Mudflow freeze Dolphchamp. Now you spam Smash on the Dolphchamp with LaCroc. After a little bit more of doing that the level should be completed.

Strategy 2 (ft. Primigenius)
Monsters: Primigenius, a monster to kill the Bloomskips and Sparkwedges, a support monster (optional)

Moves: Primigenius needs Elderly Rush

Runes: Primigenius needs 2 Life and 1 Strength or 3 Life

What to do:

Kill the Bloomskips and Sparkwedges. Doing this shouldn't be that hard. You can solo this stage with Primigenius if his life is high enough. Once you reach the boss, let Primigenius spam Elderly Rush. He will get healed by the move and deal heavy damage to the Dolphchamp at the same time. If Dolphchamp doesn't take out more than 30% of Primigenius's life at a time, then Primigenius can easily kill the Dolphchamp.

Strategy 3 (ft. Hellberus)
Monsters: Hellberus, Nereida/Tarzape, another Earth attacker

Moves: Moves don't matter much here

Runes: Hellberus needs 3 Strength or 2 Strength and 1 Life

What to do:

Kill 2 of the Bloomskips with Hellberus. Now do nothing until Hellberus's special comes up. You might see where this is going by now. Once his special comes up, kill the final Bloomskips and move on to the next wave. Let Hellberus and your Earth attacker kill the Sparkwedges. Now you should be in the final wave. Make sure Dolphchamp doesn't kill Hellberus until he does his special. Once he does, you are safe from here.