Redox, Dragon Ruler of Boulders
Dragon / Effect
EARTH / 
7If this card is in your hand or Graveyard: You can banish a total of 2 EARTH and/or Dragon-Type monsters from your hand and/or Graveyard, except this card; Special Summon this card. During your opponent's End Phase, if this card was Special Summoned: Return it to the hand. You can discard this card and 1 EARTH monster to the Graveyard, then target 1 monster in your Graveyard; Special Summon that target. If this card is banished: You can add 1 EARTH Dragon-Type monster from your Deck to your hand. You can only use 1 "Redox, Dragon Ruler of Boulders" effect per turn, and only once that turn.
1600/3000
CARD ID: 90411554
STATUS TCG: Limited
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| TCG Set | Symbol | Rarity | Low | Avg | Trend | |
|---|---|---|---|---|---|---|
| 2013 Collectible Tins Wave 2 | CT10-EN003 | Secret Rare | -,--€ | -,--€ | -,--€ | |
| Lord of the Tachyon Galaxy | LTGY-EN038 | Rare | -,--€ | -,--€ | -,--€ |
This monster is the older version of Reactan, Dragon Ruler of Pebbles. This is supported by the fact this monster has two cut-off horns while Reactan still retains its own.
Redox is an abbreviation of the term Reduction Oxidation, which is a general term for any chemical reaction that results in an atoms oxidation state changing.
This monster appears in the artwork of Dragoroar.
This monster has a True Draco counterpart: True King Lithosagym, the Disaster
Both are EARTH monsters with similar Summoning conditions, effects that activate when they are affected by card effects in a certain way (being banished by effect for Redox, being destroyed by effect for Lithosazim) to replace themselves with another monster, and have effects relating to EARTH monsters.
Redox is an abbreviation of the term Reduction Oxidation, which is a general term for any chemical reaction that results in an atoms oxidation state changing.
This monster appears in the artwork of Dragoroar.
This monster has a True Draco counterpart: True King Lithosagym, the Disaster
Both are EARTH monsters with similar Summoning conditions, effects that activate when they are affected by card effects in a certain way (being banished by effect for Redox, being destroyed by effect for Lithosazim) to replace themselves with another monster, and have effects relating to EARTH monsters.
OCG Rulings
Special Summoning this card from the hand or Graveyard is an Ignition Effect that activates in the hand or Graveyard.: Redox, Dragon Ruler of Boulders
Banishing 2 Dragon-Type and/or EARTH monsters from your hand or Graveyard is a cost.
The effect that Special Summons 1 monster from the Graveyard is an Ignition Effect that activates in the hand.
Discarding this card and 1 EARTH monster to the Graveyard is a cost to activate the effect that Special Summons 1 monster from the Graveyard.
The effect that Special Summons 1 monster from the Graveyard targets 1 monster in your Graveyard.
The effect that adds a EARTH Dragon-Type monster to the hand when this card is banished can be activated even if this card is banished during the Damage Step.
"Redox, Dragon Ruler of Boulders" has 4 effects:
-The effect that Special Summons this card from the hand or Graveyard.
-The effect that returns this card to the hand during your opponent's End Phase.
-The effect that targets and Special Summons 1 monster in your Graveyard.
-The effect that adds 1 EARTH Dragon-Type monster from the Deck to the hand when this card is banished.
Among these 4 effects, only 1 of them can be activated once per turn.: Please explain the clause of "Redox, Dragon Ruler of Boulders" that says its effects can only be applied once per turn.
The effect of "Redox, Dragon Ruler of Boulders" that Special Summons 1 monster from the Graveyard by discarding itself and 1 other EARTH monster to the Graveyard can target 1 of the monsters discarded as a cost. Furthermore, if there are no monsters in your Graveyard in the first place, the effect of "Redox, Dragon Ruler of Boulders" that Special Summons 1 monster from the Graveyard by discarding itself and 1 other EARTH monster cannot be activated.: For the effect of "Redox, Dragon Ruler of Boulders" that Special Summons a monster from the Graveyard by discarding itself and 1 other EARTH monster to the Graveyard, can 1 of the monsters discarded as a cost be targeted by this effect?
If a Special Summoned "Redox, Dragon Ruler of Boulders" exists during the End Phase, and that End Phase is seen as the opponent's End Phase from the point of view of the controller of "Redox, Dragon Ruler of Boulders", the effect of "Redox, Dragon Ruler of Boulders" that returns it to the owner's hand activates. Therefore, if "Redox, Dragon Ruler of Boulders" Special Summons itself from the hand or Graveyard and switches control by the effect of "Creature Swap", the effect of "Redox, Dragon Ruler of Boulders" that returns it to the owner's hand will activate. Furthermore, only 1 effect of "Redox, Dragon Ruler of Boulders" can be used per turn. In the previous scenario, the player who Special Summoned "Redox, Dragon Ruler of Boulders" (you) has already activated an effect of "Redox, Dragon Ruler of Boulders", but the player who obtained control of "Redox, Dragon Ruler of Boulders" as a result of "Creature Swap" (the opponent) has not. Therefore, the effect of "Redox, Dragon Ruler of Boulders" that returns it to the owner's hand during the opponent's End Phase activates.: During a turn in which the effect of "Redox, Dragon Ruler of Boulders" that Special Summons itself from the hand or Graveyard is activated, if that "Redox, Dragon Ruler of Boulders" switches control by the effect of "Creature Swap", does the effect that returns "Redox, Dragon Ruler of Boulders" to the owner's hand during the End Phase still activate?