Captain Jordan Dawson triggered a Kuwarna scoring avalanche in a 99-point belting of Waalitj Marawar.
Dawson produced a masterly 32-disposal display in the Crows' 21.11 (137) to 5.8 (38) triumph at Adelaide Oval in Sunday's twilight fixture.
Kuwarna amassed 7.4 to 0.2 in the first stanza with Dawson kicking two goals, setting up another, gathering 12 disposals and having five inside-50s in the term.
Dawson's brilliance set a dominant tone for the Crows, who now hold 12th spot with four wins, a draw and six losses.
The Eagles (16th, three wins, eight losses) entered the game with three wins from their past six matches, but slumped to their biggest loss of the season.
Dawson finished with nine inside-50s and nine marks and was among 13 Kuwarna goalscorers - winger Chayce Jones kicked three and Taylor Walker, Darcy Fogarty, Josh Rachele, Brayden Cook and Ben Keays slotted two each.
"Daws' first quarter led the way and it seemed like the guys just got on board and momentum was then with us," Senior Coach Matthew Nicks said after the match.
"He leads by example on the field, I think that's what everyone can see.
"He has got the other part too ... there's a reason we picked him as our captain, it wasn't just because of what he was doing on-field.
"He's as good as any."
Kuwarna winger Lachlan Sholl had a game-high 34 disposals, midfielders Matt Crouch (30 touches) and Rory Laird (31) were busy, and coach Matthew Nicks had the luxury of resting young on-baller Jake Soligo, who was substituted at half-time with the result settled.
West Coast's veteran defender Jeremy McGovern (25 possessions, seven marks) battled against the tide, Tim Kelly collected 23 disposals and No.1 draft pick Harley Reid was largely subdued with just five disposals in the opening half and 14, plus a goal, for the match.
With Dawson in full flight early, Adelaide recorded their highest-scoring first quarter since logging 7.5 against the Eagles in round 13 last year.
West Coast couldn't manage a goal until the seventh minute of the second quarter when Jack Williams converted a set shot.
And while the visitors scored three majors for the term, the Crows continued their scoring spree with another six goals to create a 61-point half-time lead, 13.5 to 3.4.
The hosts broke the 100-point barrier 24 minutes into the third term - they scored five goals to one in the term and took a whopping 86-point lead into the final change.
They then cruised to a percentage-boosting win with three goals to one in the final term.
SCOREBOARD
KUWARNA 7.4 13.5 18.9 21.11 (137)
WAALITJ MARAWAR 0.2 3.5 4.7 5.8 (38)
GOALS
Kuwarna: Jones 3, Walker 2, Rachele 2, Fogarty 2, Keays 2, Dawson 2, Cook 2, Soligo, Sholl, Schoenberg, O'Brien, Murphy, Burgess
Waalitj Marawar: J.Williams, Waterman, Reid, Darling, Cripps
BEST
Kuwarna: Dawson, Sholl, Jones, Fogarty, Laird, Crouch
Waalitj Marawar: Kelly, McGovern, Yeo, Reid
SUBSTITUTES
Kuwarna: Sam Berry, replaced Jake Soligo at half-time
Waalitj Marawar: Tyrell Dewar, replaced Alex Witherden at three-quarter time
