Vhati

Vhati (Visual)

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.

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Click here for my EDH Commander decks

General (1):
Vhati il-Dal

Creatures (22):
Endbringer Karn, Silver Golem Bloodgift Demon Cabal Torturer Consumptive Goo Demon of Dark Schemes Disciple of Tevesh Szat Drana, Kalastria Bloodchief Grandmother Sengir Guul Draz Assassin Harvester of Souls Kuro, Pitlord Minion of Tevesh Szat Necropolis Fiend Nefashu Smog Elemental Sorceress Queen Tree of Perdition Xenic Poltergeist Kamahl, Fist of Krosa Seedborn Muse Seeker of Skybreak

Spells (31):
Chariot of Victory Glaring Spotlight Haunted Cloak Helm of the Host Magewright's Stone Mind's Eye Oracle's Vault Puppet Strings Staff of Domination Staff of Nin Strider Harness Swiftfoot Boots Sword of the Paruns Temporal Aperture Thornbite Staff Thousand-Year Elixir Trigon of Corruption Umbral Mantle Deathreap Ritual Curse of Death's Hold Fevered Convulsions Liliana, Death Wielder Liliana, the Last Hope Liliana's Influence Phyrexian Arena Night of Souls' Betrayal Sudden Spoiling Bonds of Mortality Living Plane Nature's Revolt Quest for Renewal

Mana Acceleration (11):
Dreamstone Hedron Golgari Locket Hedron Archive Mind Stone Thran Dynamo Unstable Obelisk Circuitous Route Explosive Vegetation Mana Reflection Skyshroud Claim Zendikar Resurgent

Lands (35):
Bayou Overgrown Tomb Twilight Mire Woodland Cemetery Arcane Lighthouse Command Tower Desert Detection Tower Gaea's Cradle Grasping Dunes Ifnir Deadlands Mosswort Bridge Nykthos, Shrine to Nyx Quicksand Swamp Swamp Swamp Swamp Swamp Swamp Swamp Swamp Swamp Swamp Swamp Swamp Swamp Forest Forest Forest Forest Forest Forest Forest Sol Ring