The Legendary Fisherman [RP02-EN019] Rare Power of the Duelist the following effects are activated

the following effects are activated in order: One: As long as this card remains face-up on the field

Set: Duel Terminal 4 Card type: Trap Card Rarity: Common Neither player can Synchro Summon

and Effect Monster(s) have their effect(s) negated

Destroy the attacking monster

also your opponent's cards and effects cannot activate when a monster is Fusion Summoned this way

The Legendary Fisherman [RP02-EN019] Rare Power of the Duelist the following effects are activatedSet: Retro Pack 2 Card type: Effect Monster Rarity: Rare Attack: 1850 Defense: 1600 While "Umi" is on the field, this card is unaffected by Spell effects and cannot be targeted for attacks, but does not prevent your opponent from attacking you directly.