You may reveal an artifact card from among them and put it into your hand
You only need to exile four cards to drop the cost down to just one black mana, which is pretty easy to get to with a healthy mix of cantrips and fetch lands
The key to any successful investment is knowledge, and in the world of Pokemon cards, that starts with accurate, up-to-date valuation
My recommendation is to avoid battle in the first days of your digimon, it will probably struggle, put your digimon to sleep at night so he will wake up with full energy to train the next day, then you can try to go to the Jungle Troopers adventure route and try to recruit Palmon to the city, she enables the digifarm where you can harvest food
[1] In the case of Chaos Numbers, they are also called Over Hundred Chaos Numbers.[2] The 50 pieces that were initially scattered would have included not only the Numbers of the Ruins, but also Numbers 1 to 4, which became the Gate of Numeron, and Number 100, the Numeron Dragon
In Unbroken Bonds (2019), that means the cards above: they consistently command the highest prices in the set , often from the secret-rare slots beyond the 214-card printed checklist