It costs double red to cast a Warchief-reduced Squee, you get one back off the sacrifice and another off the cast of a red spell once you remove +1/+1 counters from the Runaway Steam-Kin
Time travel says, "For each suspended card you own and each permanent you control with a time counter on it, you may add or remove a time counter." So, you can put out cards like Judoon Enforcers, Star Whale, and Atraxi Warden out early
Jhoira, Weatherlight Captain Though Jhoira, Weatherlight Captain references historic cards generally, it almost always ends up being an artifact deck that combines Jhoiras incredible card draw with 0-cost artifacts like Lotus Petal, Jeweled Amulet, and Mox Amber to generate immense bursts of card advantage
He hasnt seen much eternal play, but the ability to exile from the library, and then use those cards, is pretty sweet
Consider using Kotis, the Fangkeeper, Rafiq of the Many or Uril, the Miststalker as your commander, and then build a deck full of protection spells, equipment and auras to maximize their damage
