The addition of different-colored parallel bonus cards to Secret Lair sets is somewhat of an advancement in collectability tactics for WotC
The classic example of this would be Sensei's Divining Top with a Future Sight effect (Mystic Forge is a popular choice) to draw your deck and win with cards like Thassa's Oracle and Aetherflux Reservoir
Ajani, Mentor of Heroes Details Color Identity: Green White Card Type: Legendary Planeswalker Ajani Text: [+1]: Distribute three +1/+1 counters among one, two, or three target creatures you control
The end, in the sense that you're likely winning the game when you cast this, or the table will retaliate so swiftly that it'll be game over for you
With the right removal and cheap spells, Elsha creates a ton of monk tokens with prowess
It is certainly a card that demands an answer, given the stream of cards that could be produced off of the top of the library