Just last week he had Lions fans roaring when he outsmarted a Melbourne opponent in the left forward pocket to set up a goal for Jonathan Brown.
But in 2008, Brennan has added a new weapon to his arsenal – consistency.
The 23-year-old has enjoyed his most even start to a season, averaging a career-high 15 possessions per game and ranking in the Lions’ top five for marks and tackles.
"I’ve worked pretty hard mentally this year to try and make sure there isn’t such a big difference between my good and my bad games," Brennan told lions.com.au.
"In previous seasons, I might have had a couple of really good games and then followed up with a couple of really bad ones where I’d only get a couple of touches.
"Now I’m concentrating on putting in an honest effort defensively and offensively all the time and just contributing whatever I can to the team."
Coach Leigh Matthews’ varied use of Brennan this season makes an understatement of the 'versatile' tag.
As expected, the Northern Territory product has spent time in the forward line, where he kicked seven goals in a brilliant performance against Collingwood last year.
He’s also been re-invented as a tall midfielder, capable of extracting the ball from stoppages with his trademark taps, one-handed pick-ups and blind turns.
When Jamie Charman missed the trip to Port Adelaide through injury, Brennan backed up youngster Matthew Leuenberger in the ruck and, a week later, started the match against Hawthorn on the competition’s form forward, Lance Franklin.
"Sometimes when we break up into groups at training, I’m actually not too sure which one to go," Brennan said with a laugh.
"But I’m really enjoying how I’m being used this year.
"I’m probably not the kind of player who likes to spend all week knowing where I’m going to play.
"Leigh will normally wait until maybe Thursday before he tells me where I’m going to play, which suits me because it stops me having all week just thinking about the one position."
Brennan and the Lions head to Kardinia Park this weekend to take on the toughest challenge in modern day football – reigning premier Geelong, looking to build on its undefeated start to the season.
Away matches against the Cats haven’t been fruitful for the Lions in the last two years, with a 77-point loss in round one of 2006 followed by a 50-point defeat in round 12 last season.
However, Brennan believes recent history will count for nothing in Saturday’s anticipated clash.
"It’s a tough place to play – being out of Melbourne, there aren’t always a lot of Lions fans there and in that way it’s not unlike playing in Perth or Adelaide," Brennan said.
"But I’m really looking forward to the challenge.
"Geelong are a great team, but once we get out on the field we know it will be 22 versus 22 and outside influences like where we are playing won’t matter.
"We went to Subiaco last year and got a win against the Eagles and it would be great to emulate that.
"It’s crucial that we get off to a good start."
