Unstoppable

Unstoppable is a MTG Arena-specific keyword ability that allows creatures to assign their combat damage as though they weren't blocked.

It is primary in green, and was previously known under the slang term Super Trample.

History
Super trample was designed as a way of bringing a trample-like effect into starter-level sets without actually using the keyword, although as the slang name implies, it is a different and often significantly more powerful ability. It first appeared in Portal Second Age and got a vertical cycle of creatures in Starter 1999, which was reprinted in Seventh Edition.

Unstoppable was introduced for MTG Arena in the March 12, 2020 Game Update (1.06.00.00). According to Matt Tabak, the term will not be appearing on printed Magic cards now or in the foreseeable future.

Unstoppable creatures

 * Deathcoil Wurm
 * Gurzigost has super trample as an activated ability.
 * Lone Wolf
 * Pride of Lions
 * Rhox
 * Spinebiter
 * Thorn Elemental
 * Tornado Elemental
 * Wolf Pack</c>

Creatures of the vertical cycle.

Grants unstoppable

 * Garruk, Savage Herald</c>
 * Outmaneuver</c>
 * Predatory Focus</c>
 * Proud Wildbonder</c>
 * Ruxa, Patient Professor</c>
 * Siege Behemoth</c>