One of my longest-running decks with exceptional amounts of work put into it. The two main components are tutorable answers to as many situations as possible and protective measures for the commander. If you get to play your own game largely undisturbed, it's easy to set up a strong board, but if you have to spend every turn looking for yet another answer, the deck may be too slow.
4 Captain Sisay
Creatures (29)
1 Mother of Runes
1 Giver of Runes
1 Devoted Caretaker
2 Stoneforge Mystic
2 Eight-and-a-Half-Tails
2 Gaddock Teeg
3 Guardian Augmenter
3 Eternal Witness
3 Dosan the Falling Leaf
3 Loyal Retainers
3 Mangara of Corondor
4 Kolvori, God of Kinship
4 Glissa Sunseeker
4 Mangara, the Diplomat
4 Linvala, Keeper of Silence
4 Shalai, Voice of Plenty
4 Yasharn, Implacable Earth
5 Lyra Dawnbringer
5 Trostani Discordant
5 Sigarda, Host of Herons
5 Kogla, the Titan Ape
6 Sun Titan
6 Nazahn, Revered Bladesmith
6 Dragonlord Dromoka
7 Resolute Archangel
7 Elesh Norn, Grand Cenobite
8 Avacyn, Angel of Hope
10 Kozilek, Butcher of Truth
11 Ulamog, the Infinite Gyre
1 Path to Exile
1 Swords to Plowshares
2 Heroic Intervention
2 Eladamri's Call
3 Teferi's Protection
3 Flawless Maneuver
4 Crush Contraband
4 Return to Dust
Sorceries (4)
4 Tempt With Discovery
5 Urza's Ruinous Blast
5 Hallowed Burial
6 Terminus
Enchantments (8)
1 Mirri's Guile
1 Land Tax
2 Sylvan Library
2 Darksteel Mutation
2 Wheel of Sun and Moon
3 Song of the Dryads
5 Asceticism
5 Privileged Position
Artifacts (10)
1 Shadowspear
1 Sol Ring
2 Lightning Greaves
2 Swiftfoot Boots
2 Blackblade Reforged
2 Thaumatic Compass
3 Champion's Helm
4 Hammer of Nazahn
5 Heroes' Podium
6 The Immortal Sun
1 Maze of Ith
1 Vesuva
1 Wooded Foothills
1 Misty Rainforest
1 Verdant Catacombs
1 Arid Mesa
1 Flooded Strand
1 Windswept Heath
1 Marsh Flats
1 Homeward Path
1 Mikokoro, Center of the Sea
1 Yavimaya Hollow
1 Kor Haven
1 Hall of Heliod's Generosity
1 Command Tower
1 Wooded Bastion
1 Stirring Wildwood
1 Bountiful Promenade
1 Sunpetal Grove
1 Scattered Groves
1 Canopy Vista
1 Temple Garden
1 Savannah
1 Gaea's Cradle
1 Pendelhaven
1 Okina, Temple to the Grandfathers
1 Eiganjo Castle
1 Flagstones of Trokair
1 Mistveil Plains
4 Forest
7 Plains