While there are combos that can make any or all creatures with infinite power, Jumbo Cactuar has the distinct honor of being the only creature that can do it without help
Ten new mechanics seemed a bit much, and I actually started out just looking at old mechanics to use for each one
More than 140 different sets, dozens of formats, and about 30,000 cards can be very confusing
Reprint value is decent, too

Advanced Search Sets Random Syntax Angel of the Ruins Arcane Signet Archaeomancer's Map Armory Automaton Baleful Strix Behemoth Sledge Blitzball Stadium Blue Mage's Cane Bronze Guardian Cait Sith, Fortune Teller Champion's Helm Chaos Shrine's Black Crystal Coin of Fate Colossus Hammer Combustible Gearhulk Commander's Sphere Conformer Shuriken Conqueror's Flail Coveted Jewel Dancer's Chakrams Darksteel Plate Everflowing Chalice Explorer's Scope Fishing Gear Herald's Horn Hero's Blade Hero's Heirloom Inspiring Statuary Key to the City Lightning Greaves Mask of Memory Meteor Golem Millikin Mind Stone Reaper's Scythe Relic of Legends Ruin Grinder Skullclamp Sol Ring Solemn Simulacrum Summoning Materia Swiftfoot Boots Sword of the Animist Talisman of Conviction Talisman of Dominance Talisman of Hierarchy Talisman of Indulgence Talisman of Progress The Falcon, Airship Restored The Warring Triad Thought Vessel Tome of Legends Torrential Gearhulk Trailblazer's Boots Walking Ballista Wayfarer's Bauble Wrecking Ball Arm

There aren't a ton of creatures, and the permanents that create tokens create ones with weak stats that only act as chump blockers