Spackman enjoyed national headlines on the back of star two-year-old Rocket Tiger last season and will be looking to emulate those feats with Semper Invictus.

Spackman accepted in both Sydney and Melbourne with the unraced two-year-old but is likely to head to Caulfield after Semper Invictus came up as the fifth emergency at Randwick.

It was Boxing Day last year that Spackman enjoyed his first metropolitan winner as Rocket Tiger claimed the two-year-old race in Sydney.

Spackman hopes history can somewhat repeat itself when Semper Invictus makes his debut in the $130,000 2YO Handicap (1200m) at Caulfield.

"He's nothing like Rocket Tiger, they're two different individuals," Spackman said of any comparisons.

"What I will say is that he's got as much ability, he's just got to learn to harness it. But he's learning all of the time and he'll get better with racing. Whatever he does on Sunday, he'll improve out of sight again.

"He's got the blinkers on so he should be able to put himself in a spot. As long as he doesn't lose it on the way up and I'll know a lot more when I get there. I'm pretty happy with him and if he handles the trip, parades well, then I think you'll see him run a hell of a race."

Semper Invictus, a Rubick gelding, was bred and is raced by Kevin Adams.

His daughter, Kacie, will be aboard Semper Invictus, in what will be her first ever ride in Melbourne.

The 38-year-old has ridden the horse in both trials, a fourth at Wagga in November and then an Albury trial win on December 11.

Spackman is happy to have the experienced horsewoman on.

"She can ride," Spackman said.

"She knows the horse well. We've drawn a bit awkwardly but I think he's got enough toe to be able to find a spot.

"I'm rapt with the horse. If we can happen to pull this off, Kevin has a yearling, a half sister, about to go through the sales so she could be worth a bit of money."

Adams held on to Semper Invictus after he was passed in at the yearling sales.

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Spackman has such an opinion of the two-year-old that he has been nominated for the $1.5 million Blue Diamond at Caulfield in February.

As Spackman proved with Rocket Tiger last year, anything is possible.

"We'll give it a crack and if it doesn't come off, it doesn't come off," he said.

Semper Invictus is a $14 chance for Saturday's Caulfield race with TAB.

Spackman also has Queen Street Boss in at Tumut on Sunday, where she is the first emergency, and drawn the outside, in the Tumut Toyota Benchmark 50 Handicap (1000m).

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