They basically act as a substitute for a card from that pack in the equivalent rarity
bring back Bruna and Gisela, if youre feeling spicy
You should not expect us to do this very often, probably only every couple of years and in very special places
If youre able to combine it with more defensive opportunities, or one that will increase your hand in a very short period of time, it can be well worth bringing out, but its unlikely to stay in play for long
Donating permanents generally isnt the best plan, but can be very powerful when built around
If a permanent returned to the battlefield with unearth would leave the battlefield for any reason, it's exiled insteadunless the spell or ability that's causing the permanent to leave the battlefield is actually trying to exile it