#0225 · Gen 2

Delibird — Best counters

Weaknesses

rock×2.56 double weaknesssteel×1.60fire×1.60electric×1.60

	Pokémon	Fast move	Charged move	Weather	Score
1	Diancie (Mega)	rockRock Throw	rockRock Slide	Partly Cloudy	10018.4
2	Tyranitar (Mega)	rockSmack DownELITE	rockStone Edge	Partly Cloudy	8916.3
3	Aerodactyl (Mega)	rockRock Throw	rockRock Slide	Partly Cloudy	8515.7
4	Rampardos	rockSmack Down	rockRock Slide	Partly Cloudy	8415.4
5	Tyrantrum	rockRock Throw	rockMeteor Beam	Partly Cloudy	7814.4
6	Rhyperior	rockSmack Down	rockRock WreckerELITE	Partly Cloudy	7513.8
7	Gigalith	rockSmack Down	rockMeteor BeamELITE	Partly Cloudy	7513.7
8	Terrakion	rockSmack Down	rockRock Slide	Partly Cloudy	7413.6
9	Regieleki	normalLock On	electricThunder CageELITE	Rainy · partial	7313.3
10	Tyranitar	rockSmack DownELITE	rockStone Edge	Partly Cloudy	7213.2
11	Blaziken (Mega)	fireFire Spin	fireBlast BurnELITE	Clear	7213.2
12	Glimmora	rockRock Throw	rockPower Gem	Partly Cloudy	7012.9
13	Charizard (Mega Y)	fireFire Spin	fireBlast BurnELITE	Clear	7012.8
14	Lycanroc (Dusk)	rockRock Throw	rockStone Edge	Partly Cloudy	6912.7
15	Lycanroc (Midday)	rockRock Throw	rockStone Edge	Partly Cloudy	6812.5
16	Aggron (Mega)	rockSmack Down	rockMeteor Beam	Partly Cloudy	6812.5
17	Stonjourner	rockRock Throw	rockStone Edge	Partly Cloudy	6612.1
18	Aggron	rockSmack Down	rockMeteor Beam	Partly Cloudy	6512.0
19	Aerodactyl	rockRock Throw	rockRock Slide	Partly Cloudy	6511.9
20	Lycanroc (Midnight)	rockRock Throw	rockStone Edge	Partly Cloudy	6411.8

Rock hits for ×2.56 — Delibird's Ice/Flying typing is double-weak, so those attackers outperform their score gap.
Watch its Normal/Ice/Flying moves — counters like Aerodactyl (Mega) and Tyrantrum take super-effective damage from them.
Partly Cloudy weather boosts Rock moves ×1.2 — the best time to battle Delibird.

Rankings are estimated cycle DPS (attack stat × move damage ÷ cycle time, with STAB and type effectiveness). Not a full battle simulation.