Collecting signature cards will unlock rental decks as usual, for example, while piecing together the entire set slowly but surely will unlock Dialga and Palkia icons
Its purpose is to welcome you to the booster
- Archon of the Wild Rose Moonshaker Cavalry A Tale for the Ages Three Blind Mice Virtue of Loyalty (Virtue of Loyalty // Ardenvale Fealty) Gnawing Crescendo Blossoming Tortoise Night of the Sweets' Revenge Agatha of the Vile Cauldron Hylda of the Icy Crown Syr Armont, the Redeemer Imodane's Recruiter (Imodane's Recruiter // Train Troops) Kellan, the Fae-Blooded (Kellan, the Fae-Blooded // Birthright Boon) Hare Raising (Pollen-Shield Hare // Hare Raising) MillEffects which can mill your or your opponent's decks, such as Millstone
While not all do, this can be helpful for picking up cards for your collection or your deck in a pinch
Sundering can be really useful to slow your opponents down and be able to remove their basic lands, and this effect triggers whenever it enters or leaves the battlefield, which means its repeatable
This has the potential to be format-changing, especially in metas with decks whose commanders have ETB abilities