mtg clash cards Magic The Gathering Assorted Promo Single Card Promo Heros Downfall Pack Clash of Titans - Ikoria:

If you somehow control two Elesh Norns, a permanent entering the battlefield causes abilities to trigger three times, not four

The only thing to keep in mind is that, if you ever put several lore counters on a saga at the same time (like if you proliferate while having Doubling Season in play), you trigger all the chapters you advance through

Finally, impact on the format if banned

A deck full of all cipher cards is going to end up cumbersome and uncastable, but judicious sprinkles to a solid base that accent the deck goals are going to be dangerous and effective

Swiftfoot Boots, Lightning Greaves, Mother of Runes, Selfless Spirit, and Selfless Savior can make touching your Commander difficult

I'll break down the top cards worth opening, along with a few honorable mentions worth keeping an eye out for