Your search for "Rampaging Brontodon 423" revealed the following:
Rampaging Brontodon (JMP) from Jumpstart, available at 401 Games Canada. Rarity: Rare Finish: Normal Artist: Lars Grant-West Card Text:TrampleWhenever Rampaging Brontodon attacks, it gets +1/+1 until end of turn for each land you control.
Rampaging Brontodon (LCC) from The Lost Caverns of Ixalan Commander, available at 401 Games Canada. Rarity: Rare Finish: Normal Artist: Lars Grant-West Card Text:TrampleWhenever Rampaging Brontodon attacks, it gets +1/+1 until end of turn for each land you control.
Rampaging Brontodon (CMM) from Commander Masters, available at 401 Games Canada. Rarity: Uncommon Finish: Normal Artist: Lars Grant-West Card Text:TrampleWhenever Rampaging Brontodon attacks, it gets +1/+1 until end of turn for each land you control.
Rampaging Brontodon - Gift Box Promo (Foil) (M19) from M19 Gift Pack, available at 401 Games Canada. Rarity: Rare Finish: Foil Artist: Lars Grant-West Card Text:TrampleWhenever Rampaging Brontodon attacks, it gets +1/+1 until end of turn for each land you...
Rampaging Brontodon (Foil) (CMM) from Commander Masters, available at 401 Games Canada. Rarity: Uncommon Finish: Foil Artist: Lars Grant-West Card Text:TrampleWhenever Rampaging Brontodon attacks, it gets +1/+1 until end of turn for each land you control.