Chronozoa
{3}{U}
Creature -- Illusion
3/3
Flying
Vanishing 3 (~this~ enters with three time counters on it. At the beginning of your upkeep, remove a time counter from it. When the last is removed, sacrifice it.)
When ~this~ dies, if it had no time counters on it, create two tokens that are copies of it.
Deadly Grub
{2}{B}
Creature -- Insect
3/1
Vanishing 3 (~this~ enters with three time counters on it. At the beginning of your upkeep, remove a time counter from it. When the last is removed, sacrifice it.)
When ~this~ dies, if it had no time counters on it, create a 6/1 green Insect creature token with shroud. (It can't be the target of spells or abilities.)
Lost Auramancers
{2}{W}{W}
Creature -- Human Wizard
3/3
Vanishing 3 (~this~ enters with three time counters on it. At the beginning of your upkeep, remove a time counter from it. When the last is removed, sacrifice it.)
When ~this~ dies, if it had no time counters on it, you may search your library for an enchantment card, put it onto the battlefield, then shuffle.