14 cards where the colors is R and the text includes “have trample”

Archetype of Aggression (Born of the Gods #88)
Battering Sliver (Time Spiral Remastered #154)
Bloodcrusher of Khorne (Warhammer 40,000 Commander #72)
Breakneck Rider // Neck Breaker (Shadows over Innistrad #147)
Breakneck Rider // Neck Breaker (Shadows over Innistrad #147)
Curse of Hospitality (Innistrad: Crimson Vow #152)
Dreadhorde Twins (War of the Spark #126)
Embodiment of Fury (Oath of the Gatewatch #107)
Ferocity of the Wilds (Throne of Eldraine #123)
Kavu Monarch (Invasion #149)
Kobold Drill Sergeant (Masters Edition III #104)
Orcish Siegemaster (Tales of Middle-earth Commander #33)
Rageblood Shaman (Jumpstart #357)
Street Riot (Guilds of Ravnica #117)
Sunrise Sovereign (Commander Anthology Volume II #121)

This search is finished. Now the real work can begin.