Maze's End and Nine-Fingers Keene are essential parts of the gates deck, namely by giving you alternate win conditions
By getting to draw each time they draw (assuming you can pay the mana cost), youll slowly overwhelm them over the course of the game by playing more cards
Counterspell Source: Reddit This is the one bonus card that, by and large, players are not happy with
In the original version of digestible, the card could be eaten by an attacking creature to temporarily boost its power and toughness and gain the eaten card's abilities (all of the boosts and abilities matched those of the creature digested and all only lasted until end of turn)
The point of my rant is not to say whats best but rather point out a dilemma that collectors are faced with
You can also gain a bunch of life with lifelink-granting auras, or use some removal-based auras that stay on the battlefield and add to your exalted count