The gold borders are the key distinguishing factor to tell the two versions of M Lucario EX 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)
Since K-9, Mark I only costs one mana, you can start taking advantage of the card very early on
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But what makes this weirder still is how unrelated the middle ability is to the other two, which care about zombie tokens