Those are the most powerful cards for Jarad, but if you dont want to go the combo route let me know your goals for the deck and I can offer more appropriate suggestions Lilbrudder on Is Thrasios Ban-able
If you frequent a card shop or attend MTG events, going and passing out business cards can be quite helpful as well
So while jumpstart boosters are a fun Limited way to play Magic, when you turn those around and gain cards that slot right into a number of Commander decks, you get a set that's a blast to open and surprisingly valuable
The cards are not exactly powerful, they are painfully slow at dealing with anything with converted mana cost above zero and are only really effective if charged up preemptively
If you want to go into Jeskai tokens, The Locust God and Kykar are excellent staples, and basically every white token deck wants Secure the Wastes
When Jade Avenger needs to block it will trade higher