Gladefell, Temporal Theorist

Whenever Gladefell becomes untapped you may
exile a card from your hand with a number of
time counters on it equal to its mana value. If it
doesn't have suspend, it gains suspend.
Magecraft —Whenever you cast or copy an
instant or sorcery spell, remove a time counter
from target suspended card.
Instructor (You can have a Lesson as a second commander.)