Steam Siege Prerelease Kit (TCG)

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.

Steam Siege Prerelease Kit
Expansion Steam Siege
Types used

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 BREAK Series
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McDonald's Collection 2015
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