4 Toxic Deluge Cut: Bone Devourer The neat thing about Zurgo is that he wants your tokens to die, since he wants your creature tokens to leave the battlefield so you can either draw a card if that creature was attacking, or each opponent loses a life
Land Color tag templates(None) Hallowed Fountain ( : Add or .) As this land enters, you may pay 2 life
A great example being Faerie Mastermind, who can draw you cards but also wear auras and equipment or trigger Coastal Piracy effects to draw even more cards

Synthoids Aang and La, Ocean's Fury Aang's Iceberg Aang's Journey Aang, Destined Savior Aang, Master of Elements Aang, Swift Savior Aang, at the Crossroads Aang, the Last Airbender Aatchik, Emerald Radian Abandon Attachments Abandoned Air Temple Abandoned Campground Aberrant Manawurm Abhorrent Oculus Abigale, Eloquent First-Year Abigale, Poet Laureate Abomination, Terrifying Titan Abrade Abraded Bluffs Absolute Virtue Absolving Lammasu Absorbing Man Abstract Paintmage Abuelo, Ancestral Echo Abyssal Gorestalker Abyssal Harvester Abzan Devotee Abzan Monument Accumulate Wisdom Aclazotz, Deepest Betrayal Acolyte of Aclazotz Acrobatic Cheerleader Acrobatic Leap Action News Crew Adagia, Windswept Bastion Adamant Will Adaptive Automaton Adaptive Gemguard Additive Evolution Adelbert Steiner Ademi of the Silkchutes Adept Watershaper Adorned Crocodile Adrenaline Jockey Adventurer's Airship Adventurer's Inn Adventuring Gear Adventurous Eater Aegis Sculptor Aegis Turtle Aerial Doombot Aerith Gainsborough Aerith Rescue Mission Aether Syphon Aetherize Aetherjacket Aettir and Priwen Affectionate Indrik Afterburner Expert Aftermath Analyst Agate Assault Agate-Blade Assassin Agatha of the Vile Cauldron Agatha's Champion

There're other characters like Zagorka, Sash and Waistcoat, and the three Numena I'd like to see as well, but given this is focusing on returning characters, those ones are probably for another article