Some are better for collectors
The standouts, at least for us, are probably Science
Not counting the foil, its 28%
4 - Revival Trance (Final Fantasy 6) Revival Trance isnt just themed around Final Fantasy 6, but specifically the back half of the story, with Celes leading the charge to rebuild the party after the world falls apart
Islandwalk : 6 cards Turning Islandwalk into unblockable : 3 cards Tap/Untap Synergy : 11 cards Deeproot Pilgrimage, Merrow Commerce, Kioras Follower, Kumena, Tyrant of Orazca, Lullmage Mentor, Merfolk Sovereign, Merrow Reejerey, Seahunter, Empress Galina, Murkfiend Liege, Twists and Turns // Mycoid Maze Although the optimal Merfolk Tribal commander for tap/untap strategy is Kumena, Tyrant of Orazca, untap strategy also works well in our Merfolk Tribal build too, either as support to our aggro strategy (untap is enabling our creatures to block even after attacking) or as an amplifier of our creatures with powerful tap abilities (among them is Kumena, Tyrant of Orazca as part of the 99)