Once the time counters are gone, the impending enchantment becomes an enchantment creature, no matter how the counters were removed
You're only able to respond with special actions that don't use the stack
As the Slivers were a part of her, The Legacy was a part of him, and she understood that
Sacrifices grant life, cards, and stackable counters that prepare your next victim for gainful harvesting or pump your attackers for a deadly push
Like the synergy between Suplex and Phantom Train before it, Sephiroth, Fabled Soldier and Aerith have a synergy that grimly reflects his fated killing: Aeriths rules let her gain +1/+1 counters every time you gain life, and Sephiroth, Fabled Soldier gives you life every time another creature dies
Which means most people exile 7 cards and pay only a single blue to draw 3 cards