They raise the question of how Wizards will approach Alchemy rebalances in the future, perhaps not only giving underplayed or unplayed cards a new lease of life, but also fostering entirely new, highly powerful decks
While it may only be to one target and not each opponent, I find this ability to be stronger because you can really shoehorn some high-mana value spells in a Gruul deck
Whats the Maximum Deck Size in Shandalar
This can be used for attack or defense: either proliferate +1/+1 counters to make his allies stronger, or proliferate a poison counter to damage an enemy further
If you didnt block, they could unmorph into something that punished you when it connected
Yes, their durable construction protects your cards against common hazards like scratches, bends, and moisture when you're transporting them