Swarmyard [Time Spiral Remastered] Plane Whenever one or more +1/+1

Whenever one or more +1/+1 counters are put on a creature you control

and it's returned from the battlefield to its owner's hand at the beginning of the next end step

Set: Core Set 2019 Prerelease Promos Type: Land Rarity: Rare {T}: Add {C}

They likely refer not to one mage

Set: POP Series 7 Type: Fighting Rarity: Uncommon Retreat cost: Colorless

Swarmyard [Time Spiral Remastered] Plane Whenever one or more +1/+1Set: Time Spiral Remastered Type: Land Rarity: Rare {T}: Add {C}. {T}: Regenerate target Insect, Rat, Spider, or Squirrel. (The next time it would be destroyed, instead tap it, remove it from combat, and heal all damage on it.) Where scavengers nest in hollowed out rib cages and chittering crawlers peer from empty eye sockets, few dare to trespass.