You need a clean, vanilla Pokémon Ruby (U) (TrashMan) ROM. Note: We cannot provide links, but the verified MD5 for the correct base is usually d2f6bde1a8a7cda5ba0eede8ef47c281.
First, a critical clarification. Many users type "NDS ROM" expecting a Nintendo DS file (.nds). However, the original Pokémon Ruby was a GBA title. The Magma hack is typically a ROM hack of the GBA version, though some later versions use the Pokémon HeartGold/SoulSilver engine (NDS) to recreate Hoenn. pokemon ruby magma nds rom verified download mediafire
Most versions of Pokémon Ruby Magma feature: You need a clean, vanilla Pokémon Ruby (U) (TrashMan) ROM
If you are searching for a true NDS version, you are likely looking for a "Demake" or a HeartGold engine hack that has renamed itself "Ruby Magma." Always verify the file size: GBA hacks are ~16MB, while NDS hacks are ~256MB. If you are searching for a true NDS
Since a truly stable "NDS Ruby Magma" is rare, most verified downloads are for the GBA emulator. Here is the safe method to get a verified version without using shady torrents.
Searching for "pokemon ruby magma nds rom verified download mediafire" pre-patched is risky. Instead, download the patch file (usually .ips or .bps).