Both of these versions simply splashed the Flamvell engine (to varying degrees) into a LV 8-focused Dark Synchro/Skill Drain deck. Today, Eric's deck focuses a lot more on the Flamvells, also using some cool tricks like busting out Flamvell Uruquizas and actually being able to protect himself with Flamvell Counter. Flamvell Counter is an upgraded Dark Bribe for the Flamvell theme, and it doesn't cost a -1 either. Sounds like this could get to become an interesting deck.
1 Dark Armed Dragon
2 Decoy Dragon
1 Destiny Hero - Diamond Dude
2 Destiny Hero - Malicious
2 Destiny Hero - Plasma
1 Elemental Hero Stratos
3 Flamvell Firedog
3 Flamvell Magician
1 Gorz the Emissary of Darkness
1 Plaguespreader Zombie
1 Sangan
1 Summoner Monk
(Spells: 13)
2 Allure of Darkness
1 Brain Control
3 Destiny Draw
1 Heavy Storm
1 Mind Control
1 My Body as a Shield
1 Mystical Space Typhoon
3 Rekindling
(Traps: 8)
2 Bottomless Trap Hole
1 Call of the Haunted
2 Flamvell Counter
1 Return from the Different Dimension
1 Solemn Judgment
1 Torrential Tribute
Right off the bat, you should notice the inclusion of Decoy Dragon. The purpose of Decoy Dragon is to summon all of the LV 8's this deck can make. I'm not too sold on the viability of this strategy, until I noticed that Decoy Dragon is a wannabe Flamvell monster. Teching it was a smart choice, since it also functions as stall. Something I don't like in here in Destiny Hero - Plasma. Although I can see the comboes with Rekindling, teching 2 isn't that great. You should only play 1, since you have an effective 3 copies (Stratos/RotA into Stratos/Plasma itself.)
A better option is Diamond Dude. Diamond Dude hits so many critical, game winning spells in here it's not even funny. A superior Destiny Hero lineup would be 2x D-Dude/ 2x Malicious, and 1x Plasma. I'm a fan of a teched Doom Lord, but it doesn't contribute in here at all.
Another thing is that Flamvell Magician doesn't need Flamvell Firedog to be live, since it can be used as a Tuner. I would suggest removing a Flamvell Firedog for a copy of Dark Grepher to solve double Malicious in hand.
-1 Destiny Hero - Plasma
-1 Flamvell Firedog
-1 My Body as a Shield
+1 Destiny Hero - Diamond Dude
+1 Dark Grepher
+1 Flamvell Counter