[BR] Ditto (FO 3). Clefable (BS2 5). When Ditto copies Clefable'

Ditto (FO 3). Clefable (BS2 5). When Ditto copies Clefable's Minimize, the effect should remain on Ditto. (Any Pokémon that attacks it should see its damage reduced.) It isn't clear if this bug is on Clefable itself or was a result of Ditto complicating things.

Type: QuickPlay
Format: Base–Fossil (1999)
Battle begins between WorldChampChuck and JasonKlaczynski!
JasonKlaczynski will take additional mulligan(s) after WorldChampChuck sets up to play.
WorldChampChuck drew an extra card.
WorldChampChuck drew an extra card.
Mulligan phase: JasonKlaczynski took 1 additional mulligans
Coin flip result: TAILS
JasonKlaczynski will start
Game setup complete
Between turns
Turn 1 begins
JasonKlaczynski drew 1 card
Put Tauros onto bench
Attached a Fighting Energy (BS2 125) to Tauros.
Between turns
Turn 2 begins
WorldChampChuck drew 1 card
WorldChampChuck played Bill.
WorldChampChuck drew 2 cards
Put Doduo onto bench
Put Bulbasaur onto bench
Attached a Grass Energy (BS 99) to Doduo.
Doduo used Fury Attack
Coin flip result: HEADS HEADS
Doduo did 20 damage to Clefairy
Between turns
Turn 3 begins
JasonKlaczynski drew 1 card
JasonKlaczynski played Pokémon Center.
Clefairy is fully healed and energies are discarded.
JasonKlaczynski played Energy Removal.
Grass Energy (BS 99) was discarded
Clefairy evolved into Clefable
JasonKlaczynski played PlusPower.
JasonKlaczynski played PlusPower.
JasonKlaczynski played Professor Oak.
JasonKlaczynski drew 7 cards
Attached a Double Colorless Energy (BS2 124) to Clefable.
Clefable used Metronome
Clefable copied Fury Attack
Clefable used Fury Attack
Coin flip result: TAILS HEADS
PlusPower +10
PlusPower +10
Clefable did 30 damage to Doduo
PlusPower (BS2 113) was discarded
PlusPower (BS2 113) was discarded
Between turns
Turn 4 begins
WorldChampChuck drew 1 card
Put Ditto onto bench
Attached a Double Colorless Energy (BS 96) to Ditto.
Doduo retreated.
Ditto is now active
Ditto used Minimize
Between turns
Turn 5 begins
JasonKlaczynski drew 1 card
JasonKlaczynski played Energy Removal.
Double Colorless Energy (BS 96) was discarded
Put Doduo onto bench
Clefable used Minimize
Between turns
Turn 6 begins
WorldChampChuck drew 1 card
Attached a Grass Energy (BS 99) to Ditto.
Ditto used Metronome
Ditto copied Minimize
Ditto used Minimize
Between turns
Turn 7 begins
JasonKlaczynski drew 1 card
Clefable used Minimize
Between turns
Turn 8 begins
WorldChampChuck drew 1 card
Attached a Grass Energy (BS 99) to Doduo.
Ditto used Metronome
Ditto copied Minimize
Ditto used Minimize
Between turns
Turn 9 begins
JasonKlaczynski drew 1 card
JasonKlaczynski played Energy Removal.
Grass Energy (BS 99) was discarded
Clefable used Minimize
Between turns
Turn 10 begins
WorldChampChuck drew 1 card
WorldChampChuck played Energy Retrieval.
Restored a Grass Energy to hand.
Restored a Grass Energy to hand.
Attached a Grass Energy (BS 99) to Ditto.
Ditto used Metronome
Ditto copied Minimize
Ditto used Minimize
Between turns
Turn 11 begins
JasonKlaczynski drew 1 card
Double Colorless Energy (BS2 124) was discarded
Clefable retreated.
Tauros is now active
Attached a Double Colorless Energy (BS2 124) to Tauros.
Tauros used Stomp
Coin flip result: TAILS
Tauros did 20 damage to Ditto
Between turns
Turn 12 begins
WorldChampChuck drew 1 card
Put Chansey onto bench
Attached a Grass Energy (BS 99) to Chansey.
Between turns
Turn 13 begins
JasonKlaczynski drew 1 card
[WorldChampChuck]: thought minimize would stop that damage
[WorldChampChuck]: effect is on me
[JasonKlaczynski]: wait you had minimized?
[WorldChampChuck]: yes
[JasonKlaczynski]: that's a bug then
[JasonKlaczynski]: i'll just pass this turn and we can say i did 20 this turn
[WorldChampChuck]: fair
TURN TIMER: a Timeout Allowance was consumed to add 60 seconds to turn time