23 cards where the card is tagged “synergy-haste”

Akroma, Vision of Ixidor (Commander Legends #2)
Altar of the Wretched // Wretched Bonemass (The Lost Caverns of Ixalan Commander #10)
Altar of the Wretched // Wretched Bonemass (The Lost Caverns of Ixalan Commander #10)
A-Minsc & Boo, Timeless Heroes (Alchemy Horizons: Baldur's Gate #A-243)
Animus of Predation (Conspiracy: Take the Crown #60)
Cairn Wanderer (Commander 2020 #130)
Death-Mask Duplicant (Darksteel #115)
Eater of Virtue (Kamigawa: Neon Dynasty #245)
Goro-Goro and Satoru (March of the Machine Commander #445)
Indominus Rex, Alpha (Jurassic World Collection #14)
Majestic Myriarch (Commander 2020 #182)
Minsc & Boo, Timeless Heroes (Commander Legends: Battle for Baldur's Gate #285)
Odric, Blood-Cursed (Innistrad: Crimson Vow #243)
Odric, Lunarch Marshal (Dominaria United Commander #103)
Ognis, the Dragon's Lash (Streets of New Capenna #210)
Path of Mettle // Metzali, Tower of Triumph (Rivals of Ixalan #165)
Path of Mettle // Metzali, Tower of Triumph (Rivals of Ixalan #165)
Priest of Possibility (Alchemy: Dominaria #2)
Rainbow Dash (Secret Lair Drop #1540)
Rayami, First of the Fallen (Commander 2019 #48)
Samut, Vizier of Naktamun (March of the Machine: The Aftermath #45)
Selective Adaptation (Commander 2020 #65)
Soulflayer (Commander 2020 #138)
Sproutwatch Dryad (Alchemy: Murders at Karlov Manor #20)
Urborg Scavengers (March of the Machine: The Aftermath #15)

Though this query has ended, its relics still slumber in New Argive.