Vigilance

Vigilance (Visual)

Tons of creatures with Vigilance
Has effects with "Tap a creature you control to do something"; so you attack, then can still do something else later.
Note that a completely different build involving Stasis-type cards is possible; I have some possibilities in the sideboard.

Click here for a text version of this decklist
Click here for my EDH Commander decks

General (1):
Horde of Notions

Creatures (32):
Aurelia, the Warleader Chromanticore Godsire Guardian of Vitu-Ghazi Ith, High Arcanist Jelenn Sphinx Kalemne, Disciple of Iroas Ojutai, Soul of Winter Razia, Boros Archangel Risen Sanctuary Skyward Eye Prophets Sphinx of the Steel Wind Stoic Angel Tariel, Reckoner of Souls Teysa, Envoy of Ghosts Vorapede Tahngarth, Talruum Hero Adarkar Valkyrie Akroan Phalanx Akroma, Angel of Wrath Avacyn, Angel of Hope Avacyn, Guardian Angel Elesh Norn, Grand Cenobite Gideon's Phalanx Herald of the Host Hundred-Handed One Kalemne's Captain Konda, Lord of Eiganjo Luminate Primordial Nacatl Hunt-Pride Radiant, Archangel Twilight Shepherd

Spells (21):
Temporal Aperture Glare of Subdual Maelstrom Nexus Phenax, God of Deception Conspiracy Skirsdag High Priest Mind Unbound Opposition Tradewind Rider Elemental Bond Lurking Predators Nullmage Shepherd Burning Anger Kyren Negotiations Smoke Diversionary Tactics Hand of Justice Heliod, God of the Sun Mobilization Righteous Confluence Sandsower

Mana Acceleration (11):
Chromatic Lantern Coalition Relic Gilded Lotus Thran Dynamo Unstable Obelisk Warden of Geometries Mirari's Wake Steward of Valeron Circle of Elders Mana Reflection Zendikar Resurgent

Lands (35):
Underground Sea Bayou Badlands Scrubland Tropical Island Volcanic Island Tundra Taiga Savannah Plateau Hallowed Fountain Temple Garden Sacred Foundry Arcane Sanctum Jungle Shrine Seaside Citadel Mystic Monastery Nomad Outpost Sandsteppe Citadel Mystic Gate Wooded Bastion Rugged Prairie Celestial Colonnade Command Tower Exotic Orchard Grove of the Guardian Holdout Settlement Krosan Verge Mosswort Bridge Reflecting Pool Slayers' Stronghold Spinerock Knoll Vault of the Archangel Windbrisk Heights Sol Ring