Atenleaf, Bold Alchemist

At the beginning of your end step, put an alchemy counter on target permanent.

{6},{t}: Return all permanents with alchemy counters on them back to their owner's hand. Put a colourless token into play that is all types, text,
power and toughness of permanents returned this
way.

"A little bit of this, with a little bit of that" - Atenleaf, Bold Alchemist