mtg upkeep trigger cards What happens when a resolves and adds a card with an 'at the beginning of upkeep' trigger? Upkeep Trigger Mtg - Etsy

This was a clear practice of Wizards using the successful Jumpstart name to market an inferior product that was much closer to the failed Theme boosters than anything else

I will start by looking at a couple pet cards to see how they are improved to scale into Commander

Skull Prophet

In Magic: the Gathering, you build a deck of spells and then cast those spells from your hand in an effort to reduce your opponents health to zero

Jeskai seems like it has a really good place in the format

Being able to exile all nonland permanents that have mana costs less than or equal to the counters you remove is a powerful ability