Unfortunately for people looking for a quick n' easy evaluation, the answer is a frustrating "it depends," because it really depends how often your opponents are casting two or more spells per turn
You get a giant, flying lifelink dragon, and delve on your spells, but at the same time, you have to pay with life to cast them
Complete your Pokemon card album to become a true Pokemon trainer
Blast Zone and Teferi, Time Raveler both seemed incredibly threatening, and the only cards that Mono-Blue really gained from the set were a couple of fine but unexciting sideboard cards in Kasminas Transmutation and God-Eternal Kefnet
Incapsula incident ID: 1813000671185796764-489576600566042864
Additionally, the sixth slot is known to contain either baby Pokemon or Shiny One and Two cards