The final scoreline would have been a bitterly disappointing for the Tactix, who competed reasonably well over the first half, and even dictated the pace of the game early on.
The smaller, more mobile, shooting pairing of English import Kadeen Corbin and Anna Thompson caused the Magic defence a few issues in the opening quarter, with the pair using movement and ballspeed to beat the opposition.
But when it came time for the Tactix to put the ball through the net, that's when the long reach of Kopua and 1.92m defender Kelly Jury had its impact.
Corbin and Thompson struggled to see over the arms of Jury in particular, and looked reluctant to go to the post. By the third quarter the Magic defence had clearly got into the heads of the Tactix shooters, with both Corbin and replacement shooter Brooke Leaver's accuracy rate dropping into the 60s.
With the Tactix missing two key defenders in Jess Moulds and Temalisi Fakahokotau, the visitors were unable to cause similar disruptions in the Magic attack end. South African import Lenize Potgieter had a field-day in her first appearance for the Magic, netting 54 of the team's 71 goals at an accuracy rate of 93 per cent.
Earlier this afternoon the Southern Steel opened the ANZ Premiership era with a convincing 75-57 win over newcomers the Northern Stars.
The Central Pulse take on the Northern Mystics in the final match of the Super Sunday triple header tonight.