The difference between one and two mana is huge, which is a good selling point for Stifle
I would advise against ever playing Signets
VAT OF REBIRTH This one is such a no-brainer in any deck that uses the graveyard judiciously
No matter how your opponent is trying to take you out, whether it's through combat damage, poison counters, Tendrils of Agony, or Archive Trap, Teferi's Protection pulls you out of the fire and keeps you safe through to your next turn
Team Goblin Tutor Infinity Elemental Painiac Six-y Beast Stet, Draconic Proofreader Strategy, Schmategy Super-Duper Death Ray Yet Another Aether Vortex GREEN B-I-N-G-O Elvish Impersonators Free-Range Chicken Growth Spurt Half-Squirrel, Half- Mother | Kangaroo Old Fogey Pippa, Duchess of Dice Slaying Mantis Spirit of the Season Squirrel Farm Surgeon General Commander Timmy, Power Gamer Wild | Crocodile MULTICOLORED Who // What // When // Where // Why ARTIFACT Bronze Calendar Entirely Normal Armchair Jack-in-the-Mox Krark's Other Thumb Paper Tiger Pointy Finger of Doom Rock Lobster Scissors Lizard Sword of Dungeons & Dragons Water Gun Balloon Game