REDU format ruling
Dragon Ice
Nearest-era rulings (Tengu, Sept 2011) — no REDU-specific archive exists.
Card effect (current official text)When your opponent Special Summons a monster (except during the Damage Step): You can discard 1 card; Special Summon this card from your hand or Graveyard. There can only be 1 "Dragon Ice" on the field.
Rulings
(1) When your opponent Special Summons a monster, you can discard 1 card to Special Summon this card from your hand or GY. (2) There can only be 1 face-up Dragon Ice monster on the field.
- The (1) optional Trigger Effect CANNOT be activated in the Damage Step [REF].
- This is similar to Green Baboon, Defender of the Forest's, whose rulings were updated [REF].
- This effect does not target.
- Discarding 1 card is a cost. Dragon Ice itself can be discarded as cost, and then Special Summon from your GY.
- The (2) Unclassified effect applies while Dragon Ice is face-up. This effect cannot be negated.
- You can Special Summon multiple copies of Dragon Ice by Return from the Different Dimension. However, excess copies will be destroyed by game mechanic before you proceed to resolve the next link in the chain (or enter an open gamestate).
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the REDU forum — sourced change requests get reviewed.