How Many Troops Needed to Kill a Level X Monster in Brutal Age?

Here are the requirements to kill Monsters in Brutal Age:

Levels 1 to Level 4:

• Level 1 Monster = 1000 troops are required (any kind)
• Level 2 Monster = 2000 troops are required
• Level 3 Monster = 3000 troops are required
• Level 4 Monster = 4001 troops are required (the reason I added 1 is because 1 unit from the army always dies. I generally send around 4020-4050 as I know 1 or few might die and a couple extra is not an issue, but basically from 4k you can do it.

Level 5 Monster:

Here it gets a bit more complex. The latest figure I have is 10,000 Tier 2 troops if you do not have any bonuses to your attack. However, the more research / talents / runes you have making your army stronger the less units you need, so for example 9,000 Tier 2 with bonuses can do it too.

From a June post from MobileDork that I saw in my research they had posted much smaller numbers of around 5,300 to 6,000 of Tier 2 units.

Update: I was able to get a kill with 8,000 Tier 2 troops with combat research.

Level 6 Monster

• Expected very minimum: 25,000 Tier 2 troops
• "Normal" requirement: 30,000 Tier 2 troops

Again the figures depend on how much bonus you have to your army such as X% attack for troops.

Pictures

Here is an example of me killing a level 4 Treant:

Here is an example of me killing a level 4 Boar:
You can see here I sent 6500 and again that 1 unit died, so it is not connected to how many you send, you will always lose one.

And here is an example of me killing a level 4 Turtle:

 And finally killing a level 4 Giant:

Other Related Monster Killing Requirements

Certain monsters also require that you reach a higher level of Stronghold before you can kill them. For example here is a level 4 Mammoth, but as you can see from the picture it requires you to have level 10 Stronghold, so even if you had a million troops you cannot attack it until you upgrade:

Feedback, Discussion & Comments

If you have additional information to add to help everyone in Brutal Age please post in the comments below.

I think the jump from level 4 to level 5 is too big. It is not comparable at all with the difference between level 3 and level 4 which is only 1000 extra units. What do you think? Is it good to have such big jumps or should the game difficulty go up more smoothly?