As detailed above, The List for BLB consists of cards from SPG.* 3 Uncommons 1 Wildcard of any rarity 1 Rare or mythic rare 1 Traditional foil of any rarity 1 Seasonal full-art basic land Spring 40% Non-foil 32%, traditional foil 8% Summer 30% Non-foil 24%, traditional foil 6% Autumn 20% Non-foil 16%, traditional foil 4% Winter 10% Non-foil 8%, traditional foil 2% 1 Non-foil token or art cardcan be any of the following: Ad/token card (65%) 54 Art cards (30%) 54 Signature art cards (5%) *Starting with Bloomburrow , de-archived cards, commonly known as The List cards, which feature the Planeswalker stamp in the bottom-left corner will no longer appear in Play Boosters

To illustrate, Gavin produced the following to illustrate how lower tiers should avoid mana denial in all its forms: You can bet land-denial will be discussed among some of the cards below, as while the Bracket system does cast a wide net over messing with enemy lands, few things are more effective than providing players with examples
The 2nd target gains the 1st target's effects until the End Phase
On top of that, if this card ends up being the mandatory engine that makes the new Mega Evolution decks work, players and collectors are going to be fighting over copies
Win or lose, the story will progress regardless
To be fair, pairing Dialga EX with Colorless cards could be the real earth-shattering application