54 cards where the full Oracle text includes “explores”

Amalia Benavides Aguirre (The Lost Caverns of Ixalan #221)
Astrid Peth (Doctor Who #11)
Brackish Blunder (The Lost Caverns of Ixalan #46)
Brazen Buccaneers (Ixalan #134)
Cartographer's Companion (The Lost Caverns of Ixalan #248)
Cenote Scout (The Lost Caverns of Ixalan #178)
Deadeye Tracker (Ixalan #99)
Deepfathom Echo (The Lost Caverns of Ixalan #228)
Defossilize (The Lost Caverns of Ixalan #103)
Dire Fleet Interloper (Ixalan #103)
Emissary of Sunrise (Ixalan #10)
Emperor's Vanguard (Ixalan #189)
Enter the Unknown (Rivals of Ixalan #128)
Fanatical Offering (The Lost Caverns of Ixalan #105)
Francisco, Fowl Marauder (The Lost Caverns of Ixalan Commander #81)
Get Lost (The Lost Caverns of Ixalan #14)
Glowcap Lantern (The Lost Caverns of Ixalan #187)
Hakbal of the Surging Soul (The Lost Caverns of Ixalan Commander #3)
Ixalli's Diviner (Ixalan #192)
Jadelight Ranger (Rivals of Ixalan #136)
Jadelight Spelunker (The Lost Caverns of Ixalan #196)
Jenny, Generated Anomaly (Doctor Who #137)
Kinjalli's Dawnrunner (The Lost Caverns of Ixalan #19)
Legion Vanguard (Commander Masters #170)
Lodestone Needle // Guidestone Compass (The Lost Caverns of Ixalan #62)
Lodestone Needle // Guidestone Compass (The Lost Caverns of Ixalan #62)
Lurking Chupacabra (Ixalan #111)
Merfolk Branchwalker (Ixalan #197)
Merfolk Cave-Diver (The Lost Caverns of Ixalan #65)
Merfolk Tunnel-Guide (Alchemy: Ixalan #25)
Miner's Guidewing (The Lost Caverns of Ixalan #24)
Nicanzil, Current Conductor (The Lost Caverns of Ixalan #236)
Over the Edge (The Lost Caverns of Ixalan #205)
Pathfinding Axejaw (The Lost Caverns of Ixalan #206)
Path of Discovery (Rivals of Ixalan #142)
Queen's Agent (Ixalan #114)
River Herald Guide (The Lost Caverns of Ixalan #209)
River Herald Scout (The Lost Caverns of Ixalan #72)
Seasoned Dungeoneer (Commander Legends: Battle for Baldur's Gate #660)
Seeker of Sunlight (The Lost Caverns of Ixalan #210)
Seekers' Squire (Double Masters 2022 #87)
Sentinel of the Nameless City (The Lost Caverns of Ixalan #211)
Shadowed Caravel (Ixalan #246)
Siren Lookout (Ixalan #78)
Spyglass Siren (The Lost Caverns of Ixalan #78)
Storm Fleet Negotiator (The Lost Caverns of Ixalan Commander #78)
Subterranean Schooner (The Lost Caverns of Ixalan #80)
Sunrise Seeker (Ixalan #40)
Tishana's Wayfinder (Ixalan #211)
Tomb Robber (Rivals of Ixalan #87)
Topography Tracker (The Lost Caverns of Ixalan Commander #95)
Twists and Turns // Mycoid Maze (The Lost Caverns of Ixalan #217)
Twists and Turns // Mycoid Maze (The Lost Caverns of Ixalan #217)
Waterwind Scout (The Lost Caverns of Ixalan #84)
Wildgrowth Walker (Ixalan #216)
Worldwalker Helm (The Big Score #7)

The orcs’ banner sends a clear message: “You've reached the end of this search.”