This card can be searcher|searched by Dark Sage, Ancient Gear Drill, "Angmarl the Fiendish Monarch", Left Arm Offering, Terraforming, An Owl of Luck, Demise of the Land, Ancient Fairy Dragon, Madolche Butlerusk, Planet Pathfinder, Pop-Up, "Metaverse", and "Set Rotation".
This card doesn't strictly support "Dragunity" Decks, and can seriously support a Dragon Deck.
* Send 1 "White Stone of Legend" from your hand to send another from your Deck to get 2 "Blue-Eyes White Dragons". This makes it easier to Summon Blue-Eyes Ultimate Dragon, Blue-Eyes Twin Burst Dragon or even Blue-Eyes Shining Dragon.
One way of using this card for both effects in one turn is by searching Dragunity Tribus, and Summoning it in order to send a Dragon to the Graveyard with its effect. However, this will limit your choice of Dragons to Level 3 or lower.
This card can support "Cyberdark" monsters.
Discard a "Dragunity" Dragon, like Dragunity Phalanx or Dragunity Aklys, and search out Dragunity Dux or Dragunity Legionnaire. Summon the Winged-Beasts and equip the "Dragunity" Dragons, allowing their effects to be used.
* By discarding "Phalanx" to search out and Summon "Dux", you can use this card's effect to gain instant access to most Level 6 Synchro Monsters, including Dragunity Knight - Gae Dearg, who can then search out and discard more of your "Dragunity" monsters to vastly increase the deck's speed.
* Using "Gae Dearg", a Debris Dragon can be searched out. On your next turn, Normal Summon it and use its effect to search for "Phalanx". Then, tune "Debris" with "Gae Dearg" to Synchro Summon Trident Dragion, and destroy this card and "Phalanx" for its effect. Against a clear field, attack for game.
* If Lord of D. or Fusion Substitute monster is discarded for sending Divine Dragon Ragnarok to the Graveyard, "Dragon's Mirror" can immediately be used to Fusion Summon King Dragun. As an alternative, the two monsters can be banished to summon Chaos Emperor Dragon - Envoy of the End.
If a Dragon/DARK Deck is used, this card's effect can be used to dump Rare Metal Dragon from your Deck, then Special Summon it via Dark Horus or "Red-Eyes Darkness Metal Dragon", employing a ruthless Beatdown.
Discard a "Red-Eyes Wyvern" to send a "Red-Eyes Darkness Metal Dragon" to the Graveyard to be Special Summoned at the End Phase.
* It can also be in reversed order to Summon your "Red-Eyes Darkness Metal Dragon" easily.
This card can also act as a quick substitute for the effect of "Dragunity Knight - Gae Dearg", since this card can be easily searched via "Terraforming", but this will limit your search only to "Dragunities".
"Red-Eyes" Decks that centered around Red-Eyes Darkness Dragon can benefit from this card greatly, since this card can:
* Dump more Dragons to the Graveyard to power-up "Red-Eyes Darkness Dragon" further.
* Dump any "Red-Eyes Wyvern" needed for reviving "Red-Eyes Darkness Metal Dragon".