There was no opposition to me posting this (since I obviously needed to test this on Pokemon Online), so treat it as a normal set. Only post / approve it if you have played using this set.
[SET]
name: Life Orb Sweeper
move 1: Flare Blitz
move 2: Stone Edge
move 3: ExtremeSpeed
move 4: Hidden Power Grass
item: Life Orb
nature: Adamant
evs: 252 Atk / 4 SpA / 252 Spe
[SET COMMENTS]
<p>This set aims to take advantage of Entei's excellent Attack stat and powerful STAB Flare Blitz. At first glance, Arcanine might seem like a better choice, but Entei has higher Attack and Speed than Adamant Arcanine. Entei also has Stone Edge as a coverage move to nail Fire-types for super effective damage, OHKOing a large amount of its switch-ins. Entei's ExtremeSpeed is very powerful and it makes a great late-game sweeping tool. Hidden Power Grass rounds off Entei's coverage by hitting Rhyperior, Kabutops, and Omastar for heavy damage. Entei also has excellent bulk for a Fire-type, meaning it switches in quite easily.</p>
[ADDITONAL COMMENTS]
<p>Entei is a hard Pokemon to stop later in the game, but in order to reach that point, Entei could use some support. Since Milotic and Slowbro are essentially the only safe switch-ins for Entei, it makes sense to use a set like SubToxic Azumarill, Swords Dance Kabutops, and Swords Dance Blaziken. If these Pokemon surprise Entei and switch in, having a Grass-type to take the Surf is definitely a good idea. Venusaur makes an excellent candidate since it has high Special Defense and can cause some major damage with Leaf Storm, Sludge Bomb, and Sleep Powder. Miltank is also a problem, albeit not a common one. Rhyperior makes a great switch in for Miltank since it resists its main STAB, doesn't care about paralysis, and can cause major damage to the switch-in. It also lures Milotic.</p>
[SET]
name: Life Orb Sweeper
move 1: Flare Blitz
move 2: Stone Edge
move 3: ExtremeSpeed
move 4: Hidden Power Grass
item: Life Orb
nature: Adamant
evs: 252 Atk / 4 SpA / 252 Spe
[SET COMMENTS]
<p>This set aims to take advantage of Entei's excellent Attack stat and powerful STAB Flare Blitz. At first glance, Arcanine might seem like a better choice, but Entei has higher Attack and Speed than Adamant Arcanine. Entei also has Stone Edge as a coverage move to nail Fire-types for super effective damage, OHKOing a large amount of its switch-ins. Entei's ExtremeSpeed is very powerful and it makes a great late-game sweeping tool. Hidden Power Grass rounds off Entei's coverage by hitting Rhyperior, Kabutops, and Omastar for heavy damage. Entei also has excellent bulk for a Fire-type, meaning it switches in quite easily.</p>
[ADDITONAL COMMENTS]
<p>Entei is a hard Pokemon to stop later in the game, but in order to reach that point, Entei could use some support. Since Milotic and Slowbro are essentially the only safe switch-ins for Entei, it makes sense to use a set like SubToxic Azumarill, Swords Dance Kabutops, and Swords Dance Blaziken. If these Pokemon surprise Entei and switch in, having a Grass-type to take the Surf is definitely a good idea. Venusaur makes an excellent candidate since it has high Special Defense and can cause some major damage with Leaf Storm, Sludge Bomb, and Sleep Powder. Miltank is also a problem, albeit not a common one. Rhyperior makes a great switch in for Miltank since it resists its main STAB, doesn't care about paralysis, and can cause major damage to the switch-in. It also lures Milotic.</p>