Vhati

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Shrink their creature's toughness to 1, then ping or give -1/-1 to kill it.
Haste adders
Untap effects
Sorceress Queen and Sudden Spoiling are similar effects.
Since I have a bunch of pinging and -1/-1 around, there are some "animate their lands" and "animate their artifacts" effects.
 
Mana Acceleration (11): General (1): Spells (31): Sideboard (Omitted/Cut card ideas):
1 Dreamstone Hedron 1 Vhati il-Dal 1 Chariot of Victory 1 Tooth Collector
1 Hedron Archive   1 Glaring Spotlight 1 Orc Sureshot
1 Mind Stone Creatures (22): 1 Haunted Cloak 1 Drakestown Forgotten
1 Gilded Lotus 1 Endbringer 1 Magewright's Stone 1 Caustic Crawler
1 Thran Dynamo 1 Karn, Silver Golem 1 Mind's Eye 1 Serrated Arrows
1 Unstable Obelisk 1 Bloodgift Demon 1 Oracle's Vault 1 Flowstone Armor
1 Worn Powerstone 1 Cabal Torturer 1 Paradox Engine 1 Jandor's Saddlebags
1 Explosive Vegetation 1 Consumptive Goo 1 Puppet Strings 1 Ring of Valkas
1 Mana Reflection 1 Demon of Dark Schemes 1 Staff of Domination 1 Hagra Sharpshooter
1 Skyshroud Claim 1 Disciple of Tevesh Szat 1 Staff of Nin 1 Painbringer
1 Zendikar Resurgent 1 Drana, Kalastria Bloodchief 1 Strider Harness 1 Grim Poppet
  1 Grandmother Sengir 1 Swiftfoot Boots 1 Sword of Vengeance
Lands (35): 1 Guul Draz Assassin 1 Sword of the Paruns 1 Lightning Greaves
1 Arcane Lighthouse 1 Harvester of Souls 1 Temporal Aperture 1 Helm of Kaldra
1 Bayou 1 Kuro, Pitlord 1 Thornbite Staff 1 Fleetfeather Sandals
1 Overgrown Tomb 1 Minion of Tevesh Szat 1 Thousand-Year Elixir 1 Contagion Engine
1 Twilight Mire 1 Necropolis Fiend 1 Trigon of Corruption 1 Plagued Rusalka
1 Woodland Cemetery 1 Nefashu 1 Umbral Mantle 1 Great Oak Guardian
1 Command Tower 1 Smog Elemental 1 Deathreap Ritual 1 Vitalize
1 Desert 1 Sorceress Queen 1 Curse of Death's Hold 1 Copperhorn Scout
1 Gaea's Cradle 1 Tree of Perdition 1 Fevered Convulsions 1 Mobilize
1 Grasping Dunes 1 Xenic Poltergeist 1 Liliana, Death Wielder 1 Korozda Gorgon
1 Ifnir Deadlands 1 Kamahl, Fist of Krosa 1 Liliana, the Last Hope 1 Ascendant Evincar
1 Mosswort Bridge 1 Seedborn Muse 1 Liliana's Influence 1 Doomwake Giant
1 Nykthos, Shrine to Nyx 1 Seeker of Skybreak 1 Phyrexian Arena 1 Retribution of the Ancients
1 Quicksand   1 Night of Souls' Betrayal 1 Brood Butcher
14 Swamp   1 Sudden Spoiling 1 Fell Shepherd
7 Forest   1 Bonds of Mortality 1 Phyrexian Plaguelord
1 Sol Ring   1 Living Plane 1 Patron of the Orochi
    1 Nature's Revolt 1 Nightshade Seer
    1 Quest for Renewal 1 Foul Presence