3RR
Sorcery
Arc Blade deals 2 damage to any target. Exile Arc Blade with three time counters on it.
Suspend 3—2R (Rather than cast this card from your hand, you may pay 2R and exile it with three time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, you may cast it without paying its mana cost.)