Duel Decks: Mind vs. Might

Deep-Sea Kraken

Deep-Sea Kraken can't be blocked.
Suspend 9—{2}{U} (Rather than cast this card from your hand, you may pay {2}{U} and exile it with nine time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, cast it without paying its mana cost. It has haste.)
Whenever an opponent casts a spell, if Deep-Sea Kraken is suspended, remove a time counter from it.

Deep-Sea Kraken can't be blocked.
Suspend 9—{2}{U} (Rather than cast this card from your hand, you may pay {2}{U} and exile it with nine 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.)
Whenever an opponent casts a spell, if Deep-Sea Kraken is suspended, remove a time counter from it.

Commander 2014

The rift remained open for days, sluicing ancient seawater. It closed only after the last great tentacle squirmed its way through.

Time Spiral

Deep-Sea Kraken is unblockable.
Suspend 9—{2}{U}
Whenever an opponent plays a spell, if Deep-Sea Kraken is suspended, remove a time counter from it.