I made some research about the meta in the early days. I found exactly what I assumed to be in every single deck. Every single Tournament Winner deck that I found contains 4x Corile.
German Championship Deck:
Wizard World East:
Also 2nd and 3rd place contain 4x Corile.
Link: https://web.archive.org/web/20071103024829/http://www.wizards.com:80/default.asp?x=duelmasters/rules/deckarticle027
GenCon 2005:
Friday's Winner:
Saturday's Winner:
German Championship Deck:
- Spoiler:
- Water:
1x Madrillon Fish
2x Emeral
4x Aqua Hulcus
1x Phantom Fish
2x Thrash Crawler
4x Corile
3x Illusionary Merfolk
Fire:
2x Rikabu, the Dismantler
3x Pyrofighter Magnus
2x Rothus, the Traveler
2x Twin-Cannon Skyterror
2x Bazagazeal Dragon
3x Searing Wave
1x Burst Shot
Darkness:
4x Locomotiver
2x Ghost Touch
2x Death Smoke
3x Terror Pit
3x Lost Soul
Total: 46 Cards
Wizard World East:
- Spoiler:
- 4 x Terror Pit
4 x Natural Snare
3 x Mana Nexus
3 x Bronze-Arm Tribe
3 x Rumbling Terahorn
2 x Lost Soul
2 x Twin-Cannon Skyterror
4 x Searing Wave
2 x Doboulgyser, Giant Rock Beast
3 x Meteosaur
3 x Crimson Hammer
2 x Phantom Fish
3 x Hunter Fish
4 x Emeral
2 x Dark Reversal
3 x Illusionary Merfolk
4 x Corile
4 x Aqua Hulcus
Total Cards: 55
Also 2nd and 3rd place contain 4x Corile.
Link: https://web.archive.org/web/20071103024829/http://www.wizards.com:80/default.asp?x=duelmasters/rules/deckarticle027
GenCon 2005:
Friday's Winner:
- Spoiler:
- 4x Mist Rias, Sonic Guardian
4x Magris, Vizier of Magnetism
4x Vess, the Oracle
4x La Ura Giga, Sky Guardian
3x Zepimeteus
4x Aqua Hulcus
4x Aqua Guard
4x Marine Flower
4x Corile
3x Diamond Cutter
3x Energy Stream
Total Cards: 41
Saturday's Winner:
- Spoiler:
- 4x Bloody Squito
3x Emeral
4x Aqua Hulcus
4x Locomotiver
3x Thrash Crawler
4x Corile
4x Illusionary Merfolk
2x Bazagazeal Dragon
3x Dark Reversal
2x Energy Stream
4x Phantom Dragon's Flame
4x Searing Wave
4x Terror Pit
2x Lost Soul
Total Cards: 47