No - No - No
Every Dungeon is different.
Don't try to use the same team to beat every dungeon.
Instead, You should see what each dungeon does.
Than try to use heroes which can help.
If some of the hero's, you need are already built up.
It will be a bonus in your favor.
I will give you an example:
Here are the skills I told you to use vs. Dragon.
Critical Skills for Dragon:
1. AOE Crowd Control (Stuns / Freeze / Provoke / True Fears)
2. AOE Damage Dealer
3. Revive
4. Block Debuffs / Remove Debuffs on Allies
5. Poison
Bonus Skills for Dragon:
6. Turn Meter Filling
7. Decrease Defense
8. Decrease Attack
9. Heals
10. Shields
Now compare the above skills with the skills you want for Ice Golem.
You will see they are similar + different.
Critical Skills for Ice Golem:
1. Single Target Damage Dealer
2. Revive
3. Block Debuffs / Remove Debuffs on Allies
4. Block Revive
5. Poison
Bonus Skills for Ice Golem:
6. Decrease Enemy Attack
7. Decrease Enemy Defense
8. AOE Stuns / Freeze / Provoke / True Fears
9. Shields
10. Heals
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Skytouch Shaman does Block Debuffs / Remove Debuffs on Allies.
She is very good vs. Dragon.
The reason why is because the Dragon does Poison + Weaken.
Skytouch Shaman can be very good vs. Ice Golem.
The Ice Golem likes to do Freeze, Heal Reduction, & Defense Down.
This same champion "Skytouch Shaman" can be benefitical in both area's.
This is an example of 2 different dungeons have similar things in common.
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Block Revive is very good vs. Ice Golem.
The Ice Golem Minions keep resurrecting themselves.
If you use Block Revive, They will stay dead forever.
It will help make the fight go easier.
Block Revive is useless vs. Dragon.
The Dragon has no revive mechanic.
It would be pointless to bring a hero who does block revive against the Dragon.
This is an example of 2 different dungeons have differences which you need to account for.
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Think of each dungeon independently.
The way I was able to beat the dungeons was by making a list.
The list I am sharing with you is how I was able to win.