Airden, Chronoclasm Master

Flash, Flying
At the beginning of each upkeep, you may pay {3} to add or remove 1 time counter from a
suspended card. If you do, draw a card.
{w}{u}{b}{r}: Exile target spell or permanent,
or a card from your hand with a number of time
counters on it equal to its converted mana cost,
and it gains suspend.