Keldon Strike Team

• WOTC Official Reminder Textofficial rules
  Kicker — Kicker [cost] (You may pay an additional [cost] as you cast this spell.)

• WWizards of the Coast2022-09-09
  Official Ruling
  Keldon Strike Team's last ability grants itself haste in addition to any other creatures you control.
• WWizards of the Coast2022-09-09
  Official Ruling
  If Keldon Strike Team leaves the battlefield during combat during the turn it entered the battlefield, any attacking creatures that came under your control this turn will continue to attack, even if they no longer have haste.
• WWizards of the Coast2022-09-09
  Official Ruling
  Creatures that enter the battlefield after Keldon Strike Team on the turn it entered the battlefield will have haste as long as it's still on the battlefield. Notably, this includes the Soldier creature tokens it creates if it was kicked.
• WWizards of the Coast2024-11-08
  Official Ruling
  If a card or token enters as a copy of a permanent, the new permanent isn't kicked, even if the original was.
• WWizards of the Coast2024-11-08
  Official Ruling
  To determine a spell's total cost, start with the mana cost (or an alternative cost if another card's effect allows you to pay one instead), add any cost increases (such as kicker), then apply any cost reductions. The spell's mana value remains unchanged, no matter what the total cost to cast it was.
• WWizards of the Coast2024-11-08
  Official Ruling
  The kicker ability doesn't let you pay a kicker cost more than once.
• WWizards of the Coast2024-11-08
  Official Ruling
  If a spell's kicker cost was paid, the spell is "kicked."
• WWizards of the Coast2024-11-08
  Official Ruling
  If you put a permanent with a kicker ability onto the battlefield without casting it, you can't kick it.
• WWizards of the Coast2024-11-08
  Official Ruling
  If you copy a kicked spell on the stack, the copy is also kicked. If the copied spell is a permanent spell, the token the copy of that spell becomes when it enters is also kicked.

Rulings via Scryfall