life drain cards mtg Budget Deckbuilding: All cards will be carefully packed for safe transit Yet another gain & drain

Eldrazi , then used in Battle for Zendikar and Oath of the Gatewatch

Faeburrow Elder not only taps for 1 mana of each color among permanents you control, but it also grows larger with every color represented, so its both a ramp engine and a solid body

You draw a card and gain 2 life

You get to peek at your deck's future, squirrel away a powerful card, and then spend the rest of the game scheming your way toward the perfect moment to unleash it

They stop being creatures at the end of your turn, allowing them to dodge sorcery speed removal

There is so singular path to reach Betors 10/20/40-life conditionbt there are plenty of options at your disposal