REDU format ruling
Evil Thorn
Nearest-era rulings (Tengu, Sept 2011) — no REDU-specific archive exists.
Card effect (current official text)You can Tribute this card; inflict 300 damage to your opponent, and if you do, you can Special Summon up to 2 "Evil Thorn" from your Deck in Attack Position, but their effects cannot be activated.
Rulings
- Tributing "Evil Thorn" is a cost to activate its effect.
- If you activate the effect of "Evil Thorn," inflicting damage is mandatory but Special Summoning is optional.
- If you can’t Special Summon, due to a card effect, you can still Tribute "Evil Thorn" to inflict damage.
- The timing on the 2 effects of "Evil Thorn" (inflicting damage and Special Summoning) are simultaneous. The effect ends after you have done both. If you have no "Evil Thorns" in your Deck, you can still Tribute "Evil Thorn" to inflict 300 damage.
- The effects of the Special Summoned "Evil Thorns" are negated as long as they remain face-up on the field.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the REDU forum — sourced change requests get reviewed.