Celestial Crusader

Flash
Split second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.)
Flying
Other white creatures get +1/+1.

Time Spiral Remastered

The List

Commander 2014

Flash (You may cast this spell any time you could cast an instant.)
Split second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.)
Flying
Other white creatures get +1/+1.

Duel Decks: Elspeth vs. Tezzeret

Time Spiral

Flash (You may play this spell any time you could play an instant.)
Split second (As long as this spell is on the stack, players can't play spells or activated abilities that aren't mana abilities.)
Flying
Other white creatures get +1/+1.

After a spell with split second resolves (or otherwise leaves the stack), players may again cast spells and activate abilities before the next object on the stack resolves.

Because damage remains marked on a creature until the damage is removed as the turn ends, nonlethal damage dealt to a white creature may become lethal if Celestial Crusader leaves the battlefield during that turn.

Casting a spell with split second won't affect spells and abilities that are already on the stack.

If the resolution of a triggered ability involves casting a spell, that spell can't be cast if a spell with split second is on the stack.

Players may turn face-down creatures face up while a spell with split second is on the stack.

Players still get priority while a card with split second is on the stack; their options are just limited to mana abilities and certain special actions.

Split second doesn't stop triggered abilities from triggering, such as that of Chalice of the Void. If one does, its controller puts it on the stack and chooses targets for it, if any. Those abilities will resolve as normal.