Effect Veiler (Quarter Century Secret Rare) (RA01-EN003) - 25th Anniversary Rarity Collection 1st Edition Number_SM70 if that monster is the

if that monster is the same Level as the one declared by your opponent

you cannot Special Summon from the Extra Deck

this attack does 10 damage plus 10 more damage

this attack's base damage is 20 instead of 50

Effect Veiler (Quarter Century Secret Rare) (RA01-EN003) - 25th Anniversary Rarity Collection 1st Edition Number_SM70 if that monster is theTypeSpellcaster Effect Tuner Monster AttributeLIGHT Level Rank1 Card TextDuring your opponent's Main Phase (Quick Effect): You can send this card from your hand to the GY, then target 1 Effect Monster your opponent controls; negate the effects of that face up monster your opponent controls, until the end of this turn.