They are powerful individual cards, but you need to untap with them to really get their value
Akroma's Vengeance Austere Command Avenge Awaken the Maelstrom Blight Grenade Blood Money Blood on the Snow Bontu's Last Reckoning Breaking Point Catastrophe Ceaseless Conflict Citywide Bust Cleanse Cleansing Nova Crux of Fate Damnation Damning Verdict Day of Black Sun Day of Judgment Deadly Cover-Up Deadly Tempest Deadly Vanity Death Begets Life Decree of Annihilation Decree of Pain Depopulate Devastation Do or Die Don't Move Doomskar Dusk // Dawn End Hostilities Endemic Plague Expel the Interlopers Extinction Extinguish All Hope Fated Clash Fell the Mighty Final Act Finale of Eternity Flesh Allergy Forced March Fumigate Game Over Guan Yu's 1,000-Li March Harsh Mercy Hellfire Hour of Reckoning In Garruk's Wake Jokulhaups Kaya's Wrath Kindred Dominance Kirtar's Wrath Life's Finale Localized Destruction Mandate of Abaddon March of Souls Martial Coup Mass Calcify Mogg Infestation Mutinous Massacre Nature's Ruin Necromantic Selection No Witnesses Obliterate Organic Extinction Overwhelming Forces Path of Peril Perish Phyrexian Rebirth Plague Wind
Zimone, Paradox Sculptor Zimone, Paradox Sculptor can be a very strong card in EDH counters decks, either as a Simic commander or in the 99
If you're doing well, your opponents will all probably have less life than you, in which case you get a bunch of tokens every turn
SamSam is good enough, making Foods and then making it cost less to sacrifice them, but FrodoFrodo has so many ifs, ands, and buts that you may never get around to actually drawing any cards with him
