Cloud's ability doesn't specify specific triggers or actions , like being triggered by attacking or dealing combat damage
6) Peter Pan-Lost Boy Leader This particular version of Peter Pan is, once again, here for his effect
The loss of Dockside Extortionist does mean that it lost its best target of all time, though

Release date: 1995-07-01 Abu Ja'far Active Volcano Akron Legionnaire Aladdin Angelic Voices Arcades Sabboth Arena of the Ancients Argothian Pixies Ashnod's Altar Ashnod's Transmogrant Axelrod Gunnarson Ayesha Tanaka Azure Drake Banshee Barl's Cage Beasts of Bogardan Blood Moon Blood of the Martyr Bog Rats Book of Rass Boomerang Bronze Horse Cat Warriors Chromium City of Brass Cocoon Concordant Crossroads Craw Giant Cuombajj Witches Cyclone D'Avenant Archer Dakkon Blackblade Dance of Many Dandn Divine Offering Emerald Dragonfly Enchantment Alteration Erhnam Djinn Fallen Angel Feldon's Cane Fire Drake Fishliver Oil Flash Flood Fountain of Youth Gabriel Angelfire Gauntlets of Chaos Ghazbn Ogre Giant Slug Goblin Artisans Goblin Digging Team Goblin Shrine Goblins of the Flarg Hasran Ogress Hell's Caretaker Horn of Deafening Indestructible Aura Ivory Guardians Jalum Tome Jeweled Bird Johan Juxtapose Keepers of the Faith Kei Takahashi Land's Edge Living Armor Marhault Elsdragon Metamorphosis Mountain Yeti Nebuchadnezzar Nicol Bolas Obelisk of Undoing Palladia-Mors

Its not even needed, but it becomes a powerhouse once you flip this into The Great Work, allowing you to play spells from everybodys graveyard on a big turn before you get Urabrask back
New players can pick them up quickly, while experienced players can tune them for higher power levels