If you pay the blitz cost to cast a creature spell, that permanent will be sacrificed only if it's still on the battlefield when that triggered ability resolves
Kefka, Court Mage (Borderless) (Surge Foil) Printing Foil Condition Near Mint (NM) Rarity Mythic Rare Number 543 Market Price $114.46 Despite being one of the better new cards to build a commander deck around, Kefka, Court Mage is surprisingly less valuable than many other lesser cards
This can be a spell that destroys a creature or an Aura that prevents it from attacking
Traveling Chocobo (Borderless) (Neon Ink Green) Printing Foil Condition Near Mint (NM) Rarity Mythic Rare Number 551d Market Price $1,645.74 The Neon Blue Ink Traveling Chocobo is the most valuable of the standard legal cards, but its Neon Green Ink variant isn't far behind
Create a 1/1 white Soldier creature token
In a Two-Headed Giant game, life gained by your teammate won't cause The Wind Crystal's second ability to apply, even though it will cause your team's life total to increase