Also effective against "Dragon Ruler" Decks, since this combination renders "Mecha Phantom Beast Dracossack", "Number 11: Big Eye", "Effect Veiler" and even "Breakthrough Skill" useless. If you can also equip at least 1 "Vylon Material" to "Epsilon", virtually almost nothing in the Deck can stop it.
Also beware of "Exploder Dragon" (most common in "Dragon Ruler" Decks) which can destroy this card upon its destruction by battle, and players can just ram it into "Epsilon" to destroy it instantly.
This card can be easily Summoned by using "Summoner Monk" to retrieve the Tuner "Vylon Prism" from the Deck. Because "Vylons" revolve around the use of Equip Spells, they are hardly ever without a Spell to use for the effect of "Summoner Monk" (they can even recycle the used Equip Cards with "Vylon Matter", too).
Be careful, though, as "Effect Veiler", "Fiendish Chain", and "Breakthrough Skill" can ruin this plan easily.
"Photon Thrasher" can also be used for the same purpose, but you need to Normal Summon "Vylon Prism" afterwards.
The "Vylon" Equip Spell Cards all add another "Vylon" Spell from the Deck to the hand when they're sent from the field to the Graveyard while face-up. This lets "Vylon Epsilon" send one of them to the grave to destroy an opponent's monster and then add another "Vylon" Equip Spell to your hand, which you can use for the effect of "Epsilon" again on the next turn.
If you ever run out of Equip Cards to use, "Vylon Matter" can help you recycle them.
Summon this using a level 1 Light Tuner and "Vylon Delta" after you have used the latter's effect to add many equip spells to your hand.
This card is best paired with "Vylon Omega". While "Omega" can handle most monster effects, "Epsilon" can clear any "indestructible by battle" monsters such as "Spirit Reaper" or "Gellenduo" that even "Omega" cannot handle. It is also useful for destroying any monster that is stronger than "Omega" itself, such as "Malefic Cyber End Dragon".
"Omega" will also cover the weaknesses of "Epsilon" against monster effects that do not target (such as "Exploder Dragon" mentioned above), which is out of the coverage of "Vylon Segment".
If paired with "Stardust Dragon" (or any of its more advanced forms), it will also protect this card from "Dark Hole", "Heavy Storm" and "Black Rose Dragon".
LIGHT Tuners that can be used as Material for this card: