Splinter, the Mentor Splinter, the Mentor ensures your nontoken creatures result in at least a fresh artifact token, and the partner capability makes it a joy to build around
In the case of the former, its because the best choices vary not only by color identity, but often by specific deck building limitations: Seismic Assault and many other red effects want you to play an extra-high land count, while a black deck with reanimation and Tortured Existence obviously cares about discarding creatures
Subterror Behemoth Stalagmo X EARTH Level 10 [ RockFlipEffect ] ATK 2800 DEF 2100 FLIP: You can discard 1 "Subterror" monster, and if you do, draw 2 cards
To create an organization account, you will provide your name, email address, phone number, and physical address