Here are examples of game play for PRE- 1.4
Every player was human with a 2 tier spread ( tier 4-5-6 battle )
Here is between 1.4 and 1.6 Still all human Still all human.
Here is after 1.6 and the introduction of BOTS ( time frame may be off ) but I think it was after 1.6 or could be 1,7
This match only had 1 human on each side if I remember correctly
I quit between 1.7 until current game design.
but that basically shows the difference between past and present.