Steam Siege Prerelease Kit (TCG)

Steam Siege Prerelease Kit
Expansion Steam Siege
Types used GrassFireWaterPsychic

The Steam Siege Prerelease Kit is a special product given to participants at the start of Prerelease Tournaments for the Steam Siege expansion. Prerelease Tournaments for the Steam Siege expansion were held on the two weekends prior to the release of the expansion, on July 23-24, and 30-31, 2016. Each Kit contains a random set of predetermined cards designed to enhance the experience of the Limited format tournament that follows.

Included in each Prerelease Kit is a 23-card Evolution pack that includes one of four specially stamped Prerelease cards for the expansion, as well as four booster packs. The Prerelease cards for the Steam Siege expansion are Yanmega, Volcanion, Clawitzer, and Hoopa, with the four different groups of possible Pokémon cards being based on their four types: Grass-type, Fire-type, Water-type, and Psychic-type.

Evolution Prerelease Kit structure

Section 1

Each Prerelease Kit included two of the following four different groups of Pokémon cards, with one group always coinciding with the included Prerelease promo.

Yanmega Group
No. Card Type Quantity
1/114 Tangela  
2/114 Tangrowth  
6/114 Yanma  
7/114 Yanmega  


Volcanion Group
No. Card Type Quantity
16/114 Ponyta  
17/114 Rapidash  
22/114 Litleo  
23/114 Pyroar  

Clawitzer Group
No. Card Type Quantity
30/114 Oshawott  
31/114 Dewott  
32/114 Samurott  
33/114 Clauncher  


Hoopa Group
No. Card Type Quantity
43/114 Nidoran♂  
44/114 Nidorino  
45/114 Nidoking  
76/98 Level Ball I


Section 2

Each Prerelease Kit also included an additional random group of predetermined Trainer cards. As the Yanmega Group and Volcanion Group have 1 less card compared to the other two groups, a Kit will contain 6-8 Trainer Cards (excluding the Level Ball provided by the Hoopa Group) depending on which two groups the Kit contains. A Kit should find 3-4 in any combination of the Supporter cards and 3-4 in any combination of Item cards were included (but no more than 2 copies of a particular Trainer card).

Supporter cards
No. Card Type Quantity
112/122 Tierno Su 0-2×
111/124 Shauna Su 0-2×
138/162 Giovanni's Scheme Su 0-2×


Item cards
No. Card Type Quantity
100/122 Great Ball I 0-2×
146/162 Professor's Letter I 0-2×
91/108 Switch I 0-2×



  This article is part of Project TCG, a Bulbapedia project that aims to report on every aspect of the Pokémon Trading Card Game.


Pokémon Trading Card Game expansions and releases
Bold indicates a main expansion. Italics indicate a special set. Releases that are entirely composed of prints from other releases are small.
XY Series
XY Black Star Promos
Kalos Starter Set: Chespin DeckFennekin DeckFroakie Deck
XY: Resilient LifeDestruction Rush
XY Trainer Kit
Flashfire: Mystic TyphoonBrilliant Thunder
McDonald's Collection 2014
Furious Fists: Dark HammerEnchanted Echo
Battle Arena Decks: Xerneas vs. Yveltal
Phantom Forces: Burning WindsBolt Twister
XY Trainer Kit: Bisharp & Wigglytuff
Primal Clash: Earth's PulseOcean's Core
Double CrisisXY Trainer Kit: Latias & Latios
Roaring Skies: Aurora BlastStorm Rider
Ancient Origins: Iron TideStone Heart
Battle Arena Decks: Mewtwo vs. Darkrai
BREAKthrough: Burning SparkNight Striker
McDonald's Collection 2015
BREAKpoint: Wave SlasherElectric Eye
GenerationsXY Trainer Kit: Pikachu Libre & Suicune
Fates Collide: Fates Collide Prerelease KitSky GuardianBattle Ruler
Steam Siege: Steam Siege Prerelease KitGears of FireRing of Lightning
McDonald's Collection 2016Battle Arena Decks: Rayquaza vs. Keldeo
Articuno Legendary Battle DeckZapdos Legendary Battle DeckMoltres Legendary Battle Deck

Evolutions: Evolutions Prerelease KitMewtwo MayhemPikachu Power
XY Era
XY-P Promotional cards
XY Beginning Set
Collection XCollection Y
Xerneas Half DeckYveltal Half Deck
Wild Blaze: M Charizard-EX Mega Battle Deck
Rising Fist
Phantom Gate: Hyper Metal Chain Deck
Super Legend Set: Xerneas-EX & Yveltal-EX
Gaia VolcanoTidal Storm
Magma Gang VS Aqua Gang: Double Crisis
Emerald Break: M Rayquaza-EX Mega Battle Deck
Bandit Ring
Legendary Shine CollectionEmboar-EX vs Togekiss-EX Deck KitM Master Deck Build Box Power StyleM Master Deck Build Box Speed Style
XY BREAK Era
Blue ShockRed Flash: Raichu BREAK Evolution PackNoivern BREAK Evolution Pack
Golduck BREAK + Palkia-EX Combo Deck
Rage of the Broken Heavens
Grass/Fighting Battle Strength SetFire/Lightning Battle Strength SetWater/Psychic Battle Strength SetPokéKyun CollectionBREAK Starter Pack
Awakening Psychic King: Zygarde-EX Perfect Battle DeckM Audino-EX Mega Battle Deck
Premium Champion Pack
Fever-Burst FighterCruel Traitor
Mythical & Legendary Dream Shine CollectionExpansion Pack 20th AnniversaryThe Best of XY