Planes usually have two important parts: A main ability which can be a continuous effect, such as Tazeem in Zendikar (whose ability is that creatures can't block while this plane is active), or a triggered ability, such as Undercity Reaches from Ravnica (which allows the controller to draw a card each time one of their creatures deals combat damage to a player)
You target one Beast or Beast-Warrior monster on the field, and it gains ATK equal to its DEF
When youve got cards you are encouraged to sandbag like solid removal spells, youre rewarded for not holding onto your lands
Fixed-price listings also work great when you already know the value, and the international audience helps your cards reach people who actually want them instead of leaving them buried in your local market
I have a few ideas for you, but most of them don't really use sagas, but I am a big fan of Zur decks and studied up on them a bit, most of the ideas are to increase the power level/offer backup plans that I think are thematically similar
I love being able to throw in a common like Impact Tremors which can take your infinite ETBs and only need as many triggers as your opponent has life
