Endless Trials

Each player chooses a creature with base power
3 or less: Those creatures gain myriad.
If one of those creatures were to die, or they
don't have a target, that player may chose a
creature that has power 3 or less to gain this
effect when it enters the battlefield.
Each player may pay {2} to copy an enchantment
or equipment attached to the creature with
myriad, and attach that copy to one of the
copied creature tokens.