Being an artifact itself is always significant, and the cheap ninjutsu cost and high toughness mean this cant be ruled out as a Constructed sleeper hit
And just one card keeps her from my top spot
1 Bright-Palm, Soul Awakener 1 Shalai and Hallar 1 Death-Greeter's Champion 1 Uncivil Unrest 1 Ichor Elixir 1 Mirror-Style Master 1 Guardian Scalelord 1 Emergent Woodwurm 1 Path of the Pyromancer 1 Conclave Sledge-Captain 1 Kalonian Hydra 1 Mikaeus, the Lunarch 1 Canopy Vista 1 Champion of Lambholt 1 Cinder Glade 1 Dromoka's Command 1 Exotic Orchard 1 Flamerush Rider 1 Flameshadow Conjuring 1 Forgotten Ancient 1 Fortified Village 1 Furycalm Snarl 1 Game Trail 1 Gavony Township 1 Genesis Hydra 1 Gyre Sage 1 Heaven /// Earth 1 High Sentinels of Arashin 1 Incubation Druid 1 Inscription of Abundance 1 Ion Storm 1 Kessig Wolf Run 1 Krenko, Tin Street Kingpin 1 Managorger Hydra 1 Mossfire Valley 1 Mosswort Bridge 1 Restoration Angel 1 Rishkar, Peema Renegade 1 Semester's End 1 Strionic Resonator 1 Sungrass Prairie 1 Sunscorch Regent 1 Temple of Abandon 1 Temple of Plenty 1 Temple of Triumph 1 Together Forever 1 Triskelion 1 Command Tower 1 Commander's Sphere 1 Cultivate 1 Evolving Wilds 1 Fertilid 1 Fractured Powerstone 1 Kodama's Reach 1 Path of Ancestry 1 Pridemalkin 1 Return to Nature 1 Terramorphic Expanse 1 Wood Elves 1 Abzan Battle Priest 1 Abzan Falconer 1 Alharu, Solemn Ritualist 1 Arcane Signet 1 Armorcraft Judge 1 Brawn 1 Bretagard Stronghold 1 Conclave Mentor 1 Constable of the Realm 1 Elite Scaleguard 1 Enduring Scalelord 1 Falkenrath Exterminator 1 Field of Ruin 1 Generous Gift 1 Good-Fortune Unicorn 1 Hamza, Guardian of Arashin 1 Hindervines 1 Inspiring Call 1 Jungle Shrine 1 Juniper Order Ranger 1 Krosan Verge 1 Llanowar Reborn 1 Mindless Automaton 1 Rogue's Passage 1 Slurrk, All-Ingesting 1 Sol Ring 1 Swords to Plowshares 1 Temple of the False God 5 Plains 2 Mountain 6 Forest Call for Backup Planechase Cards Call for Backup Tokens 2 Spirit (white) // Treasure tokens 4 Goblin // Sliver tokens 1 Elephant // City's Blessing token 3 Butterfly // City's Blessing tokens Spirit (white) // Treasure (Defender) Goblin // Sliver Elephant // City's Blessing Butterfly // City's Blessing TINKER TIME Gimbal, Gremlin Prodigy and Rashmi and Ragavan are traditional foil cards
Cavern of Souls is even getting reprinted later this year, bringing it into those formats
2013-06-07 You can exile a card in your hand using suspend any time you could cast that card
