TCG Pocket TRADEDewgong and Mega Sharpedo ex: Set Up Lorelei’s Double Knockout
Pokémon TCG Pocket · Creator guide
Based on the video and gameplay commentary by ShreyasPlays. Written adaptation by TCG Pocket Trades.
Deck created and played by ShreyasPlays. Written adaptation by TCG Pocket Trades, published with the creator’s approval.
Dewgong’s Dual Blizzard deals 60 damage to two opposing Pokémon. Lorelei raises both hits to 90 for that turn, which makes damaged attackers and small Bench Pokémon part of the same finishing play.
Getting Dewgong ready is the harder part: the attack costs three Water Energy and discards two. Shreyas pairs it with Mega Sharpedo ex, whose early attacks can build Water Energy on the Bench. The two attackers do different jobs. Sharpedo applies pressure and prepares another Water Pokémon; Dewgong turns that preparation into a two-target attack.
The 20-card list
Cards you need
Sync your Nintendo collection to see which cards you still need.
Create a trade draft for missing cards →Carvanha
B4-034 · Required 2Mega Sharpedo ex
B4-035 · Required 2Seel
C1-032 · Required 2Dewgong
C1-033 · Required 2Poké Ball
P-A-005 · Required 2Inflatable Boat
A4a-067 · Required 1Clear Veil
B4-149 · Required 1Professor’s Research
P-A-007 · Required 2Cyrus
A2-150 · Required 1Copycat
B1-225 · Required 1Wallace
B4b-223 · Required 2Lorelei
C1-125 · Required 2View text deck list
| Card / version | Copies |
|---|---|
| Carvanha — 50 HP · Sharp Fang | 2 |
| Mega Sharpedo ex — Turbo Shark | 2 |
| Seel — 70 HP · Waterfall | 2 |
| Dewgong — Dual Blizzard | 2 |
| Poké Ball | 2 |
| Inflatable Boat | 1 |
| Clear Veil | 1 |
| Professor’s Research | 2 |
| Cyrus | 1 |
| Copycat | 1 |
| Wallace | 2 |
| Lorelei | 2 |
Energy Zone: Water only. The import code contains eight Pokémon and twelve Trainer cards. It uses Clear Veil, not the Elemental Switch alternative discussed in the commentary.
Scan to build the deck
In Pokémon TCG Pocket, choose Build New → Scan Code and scan from another screen. This is the same deck and Energy configuration as the QR shown in ShreyasPlays’ video. Importing a deck does not give you missing cards.
Use Dewgong with Dual Blizzard and the 70 HP Seel with Waterfall. The Carvanha is the 50 HP, Sharp Fang version. Those details matter both for the attack plan and for Wallace’s eligibility check.
Wallace is for Carvanha
Wallace chooses one of your Water Pokémon in play with a maximum HP of 50 or less, then evolves it using a random eligible evolution from your deck. The 50 HP Carvanha meets that condition. The 70 HP Seel does not.
In this list, a Mega Sharpedo ex remaining in the deck is Carvanha’s evolution target. That lets Wallace produce an early attacker without waiting to draw the Mega naturally. Check that a target is still in the deck: Wallace cannot fetch a Mega Sharpedo already sitting in your hand.
Wallace and Lorelei are both Supporters. An early Wallace turn gets the attacker going; a later Lorelei turn boosts Dewgong. You cannot use both in one turn.
Build Dewgong while Sharpedo attacks
Mega Sharpedo ex’s Turbo Shark deals 70 damage and attaches a Water Energy from your Energy Zone to one of your Benched Water Pokémon. If your next attacker is Dewgong, having Seel or Dewgong on the Bench before that attack gives the acceleration somewhere useful to go.
That timing is the practical bottleneck. In the final featured game, Shreyas gets the early Carvanha and Wallace start but cannot find Seel in time for the attack that should help prepare it. Drawing Seel afterward leaves the second attacker behind schedule.
Once Dewgong attacks, it discards two Water Energy. It needs three attached to use Dual Blizzard, so the first attack does not establish a self-sustaining loop. Plan where the next attachments will come from. Sharpedo’s acceleration happens through an attack; you cannot use Turbo Shark and Dual Blizzard in the same turn.
Count two targets before playing Lorelei
Lorelei adds 30 damage to attacks used by your Dewgong, Cloyster or Lapras during that turn. For Dual Blizzard, that turns two 60-damage hits into two 90-damage hits. It does not boost Mega Sharpedo ex.
Before spending the Supporter, check both intended targets and the points they would award. One damaged Pokémon ex plus one small Pokémon can be more valuable than putting damage on two healthy attackers.
Dewgong also gives the list an attacker without the Pokémon ex label. In the Pikachu ex/Oricorio game, that matters: Oricorio’s Safeguard prevents attack damage from Pokémon ex, so Mega Sharpedo cannot solve that target by itself. Dewgong’s attack is not stopped by that particular Ability.
The opening match provides the clearest example. Shreyas first removes a Froakie to limit the opponent’s setup. Around 1:20, he describes the follow-up: Lorelei lets Dewgong finish the damaged Suicune and another Froakie with its two hits. Watch the actual HP on the board rather than assuming that every Suicune can be knocked out from full health by 90 damage.
Cyrus provides another route when a damaged Pokémon has moved to the Bench. It competes for the same Supporter slot, so choose between bringing a target forward and adding Lorelei’s damage. The video’s Mega Absol/Hydreigon/Umbreon game, beginning at 4:39, is a useful example of why damage left on a retreating attacker still matters.
Clear Veil or Elemental Switch?
The shown list plays one Clear Veil. Shreyas includes it to protect against attack effects that can interfere with moving the Active Pokémon, citing Mega Greninja in his explanation.
Clear Veil prevents attack effects on the Pokémon carrying it. It does not prevent attack damage, and attaching it does not remove effects already applied. It also does not protect your entire board.
Shreyas suggests replacing Clear Veil with Elemental Switch for a more aggressive version. That is an optional change, not the list encoded in this article’s QR. Keep the shown version if you want to test the same configuration before changing a slot.
The other Tool, Inflatable Boat, reduces the attached Water Pokémon’s Retreat Cost by one. Shreyas includes it for starts with Seel, helping the deck move toward the attacker it wants in front. The list has no dedicated healing card, a limitation he explicitly calls out in the second featured match.
A possible update for a future expansion
Shreyas says that if a future expansion introduces Piplup ex, he may test replacing the Carvanha, Mega Sharpedo ex and Wallace package with healing cards, while giving Elemental Switch a dedicated slot. He expects that direction could make the deck more consistent. This is a future idea from the creator, not the list shown in the video or the QR above.
Watch the loss as well as the double knockout
The video shows several selected wins, including games against Suicune/Greninja, Pikachu ex/Oricorio/Magnezone and a Fire deck. It also includes a Charizard/Entei loss at 6:46.
That loss is worth watching before copying the list. The missing early Seel delays the follow-up attacker, and retreating away from the damaged Mega Sharpedo does not make it safe from the opponent’s Blue’s Provocation. An early knockout does not always leave enough time to establish Dewgong.
There is no full match log here from which to calculate a ranked win rate or a reliable matchup percentage. The video demonstrates the deck’s early pressure and its two-target finish; it also shows how quickly the plan can fall apart when the second attacker is late.
Watch ShreyasPlays’ original video
Lorelei : They Said Dewgong Was Weak... So I Built This!..
For the full games and the creator’s commentary, watch the original video and visit ShreyasPlays’ channel.
The deck list and gameplay belong to ShreyasPlays. Original video and commentary © ShreyasPlays. This written guide is adapted and translated with the creator’s permission; original rights remain with the creator.