nightmare cards mtg Magic Card NM AP13 Flying Nightmare’s power and toughness are each equal to the number of Swamps you control. MTGNexus - Spreading Nightmare

An easy place to start is adding some of the other additional land drop effects, which were a little too pricey for me to go deep on: Azusa, Lost but Seeking, Kodama of the East Tree, Dryad of the Ilysian Grove, and Exploration are all excellent and will help you make the most of your explore triggers

Thanks to this, it seems typal decks have some serious potential in Standard, and Banner is the ideal card for them

On the low end for a very casual introduction you have the Starter Kits which come with two decks

He is the most powerful of the already-powerful Elder Dragons, possibly the oldest living being in the Multiverse, and a pre-Mending Planeswalker desperate to reclaim his lost godlike powers