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CASEY Prather and Tyrell Harrison breathed life into Brisbane's season by tag-teaming Perth into submission, Tasmania again beat the odds - and the whistle - to dethrone the Kings, and Bryce Cotton was sufficiently near his best, in the first half at least, for Adelaide to send South East Melbourne back to the NBL drawing board.

After being restricted to seven points by the Kings, Cotton's game-opening 3-pointer left little doubt of his mindset as he rattled on 15 first-quarter points.

South East Melbourne only had 16 as a team, Adelaide ahead 28-16 and already in the box seat.  The Phoenix's defensive anchor Jordan Hunter had two fouls in ultra-quick time and the 36ers were in bonus within four minutes, much to the delight of the sold-out arena.

Cotton had 20 with seven minutes to go to halftime but from there, his shot deserted him to an extent, his match-high 28 points on a cooled-off 10-of-23 shooting.

Once the 36ers established their lead, it always was going to be a long road back, the Phoenix's woes compounded with John Brown's third foul and halftime still well in the distance.

Playing his milestone 300th game, former 36er Nathan Sobey struggled to 12 points on 4-of-14 shooting and when Isaac Humphries (21 points at 63 per cent, 10 rebounds, three blocks) seized control of the keyways in the third quarter, South East may as well have been North West.

Despite the bizarre substitution rotation of 36ers coach Mike Wells, Adelaide led by as many as 28 points before a late rearguard fightback made the final scoreline appear reasonable.

It wasn't. Adelaide dominated, South East even making its defence look good by shooting at a dreadful 32 per cent, Hunter Maldonado, going 4-of-16, the worst offender.

In Perth, Prather and Harrison put the Wildcats to the sword from tip-off. For those who follow such things, they laid the Smackdown on Perth at RAC Arena and were the "crown jewels" of Brisbane's most significant and Raw win of the season.

John Rillie again wasted precious time starting Dontae Nusso-Rance at PG and the Wildcats, with Kristian Doolittle never a factor offensively, were caught playing chasey all evening.

Stu Lash - or someone from the Bullets Brains Trust - decided to take wayward Jaylen Adams out of the starting five and immediately the Bullets looked better.

Lamar Patterson relished his opportunity but it was Prather who was unstoppable, turning back the clock a decade to when he was winning championships for the Wildcats.

And Harrison, who has been totally MIA in the Bullets' past two outings, wasn't taking a backward step from Jo Lual-Acuil Jr, or Sr for that matter. Instead he delivered a career best 27 points at 72 per cent, 15 rebounds (eight offensive - one more than Perth), three assists, a steal and a block.

He was fearless but Prather peerless, his 34 points at 61 per cent, 3-of-5 threes, 9-of-9 FTs, 10 rebounds, three assists, a steal and a block.

It may well have opened the eyes of Doolittle, Dylan Windler and Mason Jones that yes guys, THAT'S what an import looks like!

Jones enjoyed a brief purple patch en route to 19 points at 50 per cent but still spent too much time whining and even copped a technical for his trouble.

Rillie's rotations were all over the place while Brisbane never lost focus or composure, Taine Murray sticking 3-of-3 threes, Alex Ducas 4-of-8 and Adams, while still wearing that bewildered expression, had one shot attempt, dished six assists and cancelled his three turnovers with three steals.

It was Brisbane as we had never previously seen it, taking the maximum seven Ignite Cup points in the process.

In Hobart, despite some of the worst officiating we've had to endure this season, Tasmania spanked Sydney from start to finish, Tyger Campbell making his intentions clear from the tip-off.

Campbell was the X-factor, his game (and NBL career) high 21 points including 5-of-9 threes, his early long range missile assault leaving the Kings smouldering and without answers.

He also shared five assists, fellow starter Nick Marshall with six to go with his eight boards, three steals and hustling defence on Kendric Davis.

Davis' 10 points came off 4-of-17 shooting, most of these Kings clearly leaving their best form back in Adelaide as Ben Ayre came off the JackJumpers bench to further harass their backcourt.

He also added 13 points at 63 per cent in 18 minutes and helped stall Sydney's comeback after Will Magnay was ejected from the contest.

Hit by one of the most absurd unsportsmanlike fouls on a made basket for which he was given a bonus free throw, he was actually then assessed a USF on that play.

It was beyond ridiculous and stung Tasmania when he collected a technical foul during the third quarter. Compounded by the USF, it meant his ejection just inside the last two minutes.

On the back of Josh Bannan's super solid performance of 18 points, 14 rebounds and six assists, Tasmania weathered every Sydney assault and even received the benefit of a clear over-and-back call in what must go down as best a baffling officiating performance, at worst a pathetic example of how low our officiating levels are sinking.

Round 5 (Includes Ignite Cup)

Tasmania JackJumpers 86 (Campbell 21, Bannan 18, Ayre 13; Bannan 14 rebs; Marshall, Bannan 6 assts) d Sydney Kings 70 (Galloway 13, Soares, Cooks 12, Dellavedova 11, Davis 10; Soares, Cooks 8 rebs; Cooks, Davis, Dellavedova 4 assts) at the Anthill, MyState Bank Arena. Crowd: 4,250 Q-Q: 29-19, 21-13, 19-18, 17-20. Cup Pts: Tasmania 6, Sydney 1

Brisbane Bullets 110 (Prather 34, Harrison 27, Devers 15, Ducas 14, Murray 12; Harrison 15 rebs; Adams, Patterson 6 assts) d Perth Wildcats 93 (Jones 19, Lual-Acuil 18, Windler 12, Henshall 10; Doolittle 5 rebs; Doolittle 6 assts) at the Bungle, RAC Arena. Crowd: 6,110 Q-Q: 26-21, 30-27, 24-23, 30-22. Cup Pts: Brisbane 7, Perth 0

Adelaide 36ers 88 (Cotton 28, Humphries 21, Cheatham, Vasiljevic 8; Cheatham 14 rebs; Cotton 6 assts) d South East Melboiurne Phoenix 71 (Hunter 16, Sobey 12, Glover 11, Lewis 10; Hunter, Sobey 7 rebs; Maldonado 7 assts) at Brett Maher Court, Adelaide Entertainment Centre. Crowd: 9,802

CAIRNS has lost superstar recruit Jack McVeigh to a right wrist injury for the foreseeable future. In Perth, the Wildcats have pulled the trigger and cut Mason Jones, initial reports suggesting they do not expect an immediate replacement for three weeks

Meanwhile new South East Melbourne import, Wes Iwundu, will make his NBL debut against Illawarra after only arriving in Australia on Wednesday.