|This just takes a bit of patience. The first two tiers I did in Legend Killer mode I finished in about 32 minutes each, but I increased the stats of my created legend after each using the XP I'd earned. When I did the third tier it only took me 25 minutes because I had an overall rating of 70.|
At the start of the match while you're Level 1, simply punch your opponent to the floor and stomp him when he's down. This is the quickest way to build your 'bar' up to Level 2. Once you reach level 2, instead of punching your opponent down, suplex him, then beat him down while on the floor. I find this works best as it builds your bar quickest, but also does a decent amount of damage. Once you hit level 3, nail your finisher and pin him.