The best is the first
Then it gives the equipped creature +1-1
Arcane Bombardment Arcane Heist Arcane Proxy Arcane Savant Bloodthirsty Adversary Blue Mage's Cane Chandra, Hope's Beacon Chandra, Pyromaster Demilich Dual Strike Elemental Expressionist Elite Arcanist Emeritus of Truce Ether Eye of the Storm Finale of Promise Flawless Forgery Founding the Third Path Galvanic Iteration God-Eternal Kefnet Impulsivity Increasing Vengeance Isochron Scepter Jaya, Fiery Negotiator Magar of the Magic Strings Mizzix's Mastery Mnemonic Deluge Muddle, the Ever-Changing Myra the Magnificent Mysterious Stranger Panoptic Mirror Psionic Ritual Refuse // Cooperate Renegade Bull Roving Actuator Saruman of Many Colors Signature Spells Skycoach Conductor Soundwave, Sonic Spy Spellbinder Spellbinding Soprano Spelltwine Spellweaver Volute Stella Lee, Wild Card Storm of Memories Stormsplitter Surge to Victory The Tale of Tamiyo Wizard's Spellbook Wizards of Thay
You can only use this effect of "Jormungandr, Generaider Boss of Eternity" once per turn
Stardust Dragon Victim Sanctuary / Starjunk Synchron / Synchro Emergency , inspired by Yusei's cards from Yu-Gi-Oh
At the resolution of its activation, a Trap Card resolves the "primary effect" written as the first sentence of its card text, if it has any