If 3 or more of your LIGHT monsters are banished, you can Special Summon this card (from your hand). Once per turn, this card cannot be destroyed by battle.
How to Get
50,000 xGold SR Jewel x6 Stone of Light x55
Strong DEF stats.
Can be Special Summoned from your Hand.
It cannot be destroyed by battle, once per turn.
Requires 1 tribute to Tribute summon.
Need to have 3 or more LIGHT monsters banished, in order to Special Summon from your Hand.
Weak ATK stats.
You can use That Grass Looks Greener or Needlebug Nest to fill your Graveyard with banish materials quickly.
Besides being a strong defender on your Field, you can turn Lightray Madoor into an offensive Attacker by using cards like Inverse Universe or Shield and Sword, to swap its ATK and DEF values.
You can also use Lightray Grepher to banish this monster from your Deck, then Special Summon it by using Premature Return.
Eclipse Wyvern itself is a LIGHT monster, which can banish another level 7 or higher LIGHT or DARK Dragon-type monster from your Deck, when it was sent from the Field to the Graveyard. Eclipse Wyvern itself can also be banished from the Graveyard to retrieve the banished level 7 or higher LIGHT or DARK Dragon-type monster to your Hand. Skilled Blue Magician is a LIGHT Spellcaster-type that can be banished from the Graveyard to add Spell counter to applicable cards you control (at this point, you have the option to use Different Dimension Master to Special Summon Skilled Blue Magician from the banished zone back to the Field). Lightray Grepher can banish 1 LIGHT monster from your Deck, by discarding another LIGHT monster from your Hand. Hieratic Dragon of Sutekh can be Special Summoned by banishing 3 Normal Dragon-type monsters from your Graveyard, so you can directly banish 3 LIGHT attribute Normal Dragon-type monsters to Special Summon. Additionally, this monster can banish 1 Dragon-type monster from your Graveyard to destroy 1 card on the Field once per turn. Hieratic Dragon of Asar can be Special Summoned by banishing 1 LIGHT Dragon-type monster and another Normal Dragon-type monster from your Graveyard. Bujingi Sinyou, Bujingi Hare, Bujingi Boar, Bujingi Quilin, Bujingi Turtle, Bujingi Centipede are all LIGHT monsters that can be banished to activate their respective effects.