Here is the shortlist of the top 15 best cards in Mod 15 and their exact drop locations.
| Rank | Card Name | Drop Location | S-Rank Drop Rate (Estimate) | | :--- | :--- | :--- | :--- | | 1 | Blue-Eyes Ultimate Dragon | Seto Kaiba (3rd) | ~0.5% | | 2 | Meteor B. Dragon | DarkNite | ~1% | | 3 | Obelisk the Tormentor | Seto Kaiba (3rd) | ~0.2% | | 4 | Slifer the Sky Dragon | Final Yugi | ~0.1% | | 5 | The Winged Dragon of Ra | Shadi | ~0.4% | | 6 | Gate Guardian | Paradox Brothers | ~5% (Easiest god-tier farm) | | 7 | Twin-Headed Thunder Dragon | No longer drops! (Fuse Thunder Dragon x2) | N/A | | 8 | Dark Magician of Chaos | Final Yugi | ~0.3% | | 9 | Relinquished | Pegasus (1st) | ~2% | | 10 | Thousand-Eyes Restrict | Pegasus (Final) | ~1% | | 11 | Exodia the Forbidden One | Final Yugi (Each piece drops individually) | ~0.5% per piece | | 12 | Perfectly Ultimate Great Moth | Weevil (Post-game only) | ~3% | | 13 | Zera the Mant | Seeker (Rare Hunter) | ~4% | | 14 | Cosmo Queen | Ishizu (Post-game) | ~2% | | 15 | Crab Turtle | Mako (S-Rank Aura) | ~6% |
To appreciate this drop list, look at the quality-of-life changes: Yugioh Forbidden Memories Mod 15 Drop List
| Card | Vanilla FM Drop Rate | Mod 15 Drop Rate | Best Farmer | | :--- | :--- | :--- | :--- | | Gate Guardian | Drops from Meadow Mage (1/10,000) | Paradox Bros (5%) | Brand new | | Meteor B. Dragon | Seto 3rd (0.1%) | DarkNite (1%) | Massive improvement | | Blue-Eyes White Dragon | Seto 1st (0.5%) | Seto 1st (3%) | Actually farmable | | Twin-Headed Thunder Dragon | Random high drop | Removed (Fusion only) | Skill-based |
The drop system in Mod 15 is based on three factors: Here is the shortlist of the top 15
| Card Name | Farmer | Rank Needed | | :--- | :--- | :--- | | Blue-Eyes Ultimate Dragon | Seto 3rd | S | | Dark Magician of Chaos | High Meadow Mage | S | | Chaos Emperor Dragon | Seto 3rd | S | | Black Luster Soldier - Envoy | Seto 3rd | S | | Five-Headed Dragon | Shadi 2nd | S | | Gate Guardian | High Meadow Mage | S | | Meteor Black Dragon | Rex 2nd | A | | Red-Eyes Black Metal Dragon | Bandit Keith 2nd | A | | Twin-Headed Thunder Dragon | Kaiba 2nd | B | | Skull Knight | Pegasus 1st | B | | Millennium Shield | Ishizu 1st | C | | Swordstalker | Joey 2nd | C | | Fiend Megacyber | Seto 1st | D |
After beating Heishin 3rd (DarkNite), the game unlocks "Free Duel" mode with exclusive drop lists for gods and legendary cards. To appreciate this drop list, look at the
| Opponent | Key Drops (S-Rank Required) | Rarity in Mod 15 | | :--- | :--- | :--- | | Shadi | Millennium Shield, The Winged Dragon of Ra (Sphere Mode) | Ultra Rare (1/256 S-rank) | | DarkNite (Heishin 3rd) | Meteor B. Dragon, Black Skull Dragon | Super Rare | | Seto Kaiba (3rd - Final) | Blue-Eyes Ultimate Dragon, Obelisk the Tormentor | Ultra Rare (1/512) | | Yugi Muto (Final Boss) | Slifer the Sky Dragon, Dark Magician of Chaos, Exodia pieces | Ultra Rare (1/1024 - Rarest in game) | | Pegasus (Final Form) | Thousand-Eyes Restrict, Manga Ryu-Ran | Rare |
Crucial Tip: The Winged Dragon of Ra in Mod 15 actually works. You must tribute 3 monsters, and its ATK/DEF becomes the sum of the tributes. It replaces the old "Meteor B. Dragon" meta.