Abigale, Eloquent First-Year Abigale, Poet Laureate Aegis Sculptor Ambrosia Whiteheart Aven Interrupter Balmor, Battlemage Captain Bartz and Boko Black Chocobo Blacksnag Buzzard Buzzard-Wasp Colony Cat-Owl Choco, Seeker of Paradise City Pigeon Clinquant Skymage Coveted Falcon Crow of Dark Tidings Curious Farm Animals Dragonhawk, Fate's Tempest Dreadwing Scavenger East Wind Avatar Elemental Mascot Empyrean Eagle Encouraging Aviator Featherbrained Filcher Finch Formation Hardened Academic Harrier Strix Healer's Hawk High-Flying Ace Iguana Parrot Jackdaw Savior Kastral, the Windcrested Kishla Skimmer Knightfisher Koya, Death from Above Kykar, Zephyr Awakener Lifecreed Duo Lotusguard Disciple Maha, Its Feathers Night Messenger Hawk Miner's Guidewing Mockingbird Monastery Messenger Moseo, Vein's New Dean Ostrich-Horse Otter-Penguin Owlin Historian Pet Avengers Pileated Provisioner Plumecreed Escort Plumecreed Mentor Raven Eagle Raven of Fell Omens Resilient Roadrunner Salvation Swan Sazh's Chocobo Seedpod Squire Shrike Force Sinkhole Surveyor Skycoach Conductor Skyskipper Duo Slickshot Show-Off Spellbook Seeker Sterling Supplier Stirring Hopesinger Strix Lookout Summon: Choco/Mog Summon: Fat Chocobo Sunbird Effigy Swiftwing Assailant Tempest Hawk The Goose Mother
Getting to drain them every time your creature dies is a staple in black sacrifice/aristocrats decks in many MTG formats, and if you want more of this in your EDH decks, go for it
You are not forgotten
If you're looking for more instant-speed removal, Wear/Tear , Stroke of Midnight , and Beast Within are good additions with a lot of flexibility.
Green Ramp, Recursion, And Removal Green is one of the better colors in Foundations Limited for one reason alone: Llanowar Elves
