The EX series runs from Ruby & Sapphire in July 2003 to Power Keepers in February 2007, and its sets are small and frequent, with a new one roughly every few months. Unseen Forces has the largest printed size at 115, and sits beside the 28-card Unseen Forces Unown Collection released the same day. The Poké Card Creator Pack is the smallest entry at 5 cards. Eleven of its sets list one to four cards past their printed size.
EX sets by release date
| Set | Released | Numbered cards | Secret rares |
|---|---|---|---|
 Ruby & Sapphire | Jul 2003 | 109 | — |
 Sandstorm | Sep 2003 | 100 | — |
 Dragon | Nov 2003 | 97 | 3 |
 Team Magma vs Team Aqua | Mar 2004 | 95 | 2 |
 Hidden Legends | Jun 2004 | 101 | 1 |
| Poké Card Creator Pack | Jul 2004 | 5 | — |
 FireRed & LeafGreen | Sep 2004 | 112 | 4 |
 Team Rocket Returns | Nov 2004 | 109 | 2 |
 Deoxys | Feb 2005 | 107 | 1 |
 Emerald | May 2005 | 106 | 1 |
 Unseen Forces | Aug 2005 | 115 | 2 |
| Unseen Forces Unown Collection | Aug 2005 | 28 | — |
 Delta Species | Oct 2005 | 113 | 1 |
 Legend Maker | Feb 2006 | 92 | 1 |
 Holon Phantoms | May 2006 | 110 | 1 |
 Crystal Guardians | Aug 2006 | 100 | — |
 Dragon Frontiers | Nov 2006 | 101 | — |
 Power Keepers | Feb 2007 | 108 | — |