Star Pupil (J21)

Creature — Human Wizard

Star Pupil enters the battlefield with a +1/+1 counter on it.
When Star Pupil dies, put its counters on target creature you control.

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uuid: e5649a29-bf0d-5ed6-b477-abdbb8d34a80

2021-04-16:
Star Pupil puts all of its counters onto the target creature, not just its +1/+1 counters.
2021-04-16:
Star Pupil’s ability doesn’t cause you to move counters from itself to the target creature. Rather, you put the same number of each kind of counter Star Pupil had when it died onto that creature.
2021-04-16:
In some unusual cases, you may end up putting the appropriate counters on more than one permanent. For example, if you control The Ozolith when Star Pupil dies, you will put the appropriate number of each kind of counter onto both The Ozolith and the target creature.
2021-04-16:
If Star Pupil has -1/-1 counters on it when it dies, the last ability will include those as well. This may result in the recipient also dying.