Functionally Master's Rebuke. The set around it is the only variable, and it cooperates. TMT is a medium-speed midrange format where the common removal suite is decent but not deep, and most of the threats that matter are two-color legendary uncommons and the occasional mythic Turtle or Shredder, Unrelenting. A two-mana instant that points a green creature at any of them, without taking return damage, is the cleanest answer green has here.
The asymmetric clause is what makes it travel. Green's commons land on standard 2/2 and 2/3 bodies, which is exactly enough power to kill the things you need to kill, and Equipment like Bespoke Bō and Novel Nunchaku raise the ceiling on what counts as a target. Sneak is the format's defining keyword across 59 cards, so a lot of combat math already happens at instant speed; holding up two for this fits the way the format wants to be played. The deathtouch commons stretch the range further still, turning small bodies into answers to the largest legends.
Early pick in any green seat, with the BG food shell and the GU tempo pair the happiest homes. Draftsim's 6 reads it as clean and downside-free; the higher 8 reads are closer to right in a format this thin on premium green removal.
