Viashino Bladescout

Flying R: This creature gets +1/+0 until end of turn. Suspend 2—RR Whenever an opponent casts a spell, if this card is suspended, that player may put a time counter on this card.

(T: Add U.)

All Sliver creatures have double strike.

Each player loses 1 life, discards a card, sacrifices a creature of their choice, then sacrifices a land of their choice.

All Slivers have "T: Tap target permanent."

Flying Sacrifice this creature: Counter target spell unless its controller pays 2.

All Sliver creatures have "Whenever this creature is dealt damage, put a +1/+1 counter on it." (It must survive the damage to get the counter.)

U: This creature gets +1/+0 until end of turn. Suspend 4—U (Rather than cast this card from your hand, you may pay U and exile it with four 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. It has haste.)