Kronii, Epoch Warden

Whenever you cast a spell, if it doesn't have
suspend, exile it with a time counter, it gains
suspend.
Remove a time counter from a card exiled by
Kronii, Epoch Warden: Choose one —
• Kronii phases out.
• Return target instant or sorcery spell to it's
owner's hand unless it's controller pays {1}.
• Put a stun counter on target creature.