I love when a single card is both the gas and the engine to our lifegain-machine
That red mana doesnt go away until the end of the combat step, allowing players to ramp up their assault with instant speed cards quickly
But some of the cheaper ones seem like they might tempt certain Legacy archetypes with their synergies and any cares about artifact cards are always worth a look for Vintage, especially if theyre Tinker-able themselves
For example, if you have six cards in hand as Doctor Octopus's last ability resolves, and you also control Thought Reflection (an enchantment that says "If you would draw a card, draw two cards instead"), you'll end up drawing four cards
Tasha, the Witch Queen can be your commander
Drannith Healer fits right in, and will give me another way to gain life