The first is a triggered ability: "When this permanent enters the battlefield, target player may search their library for a card named [name], reveal it, put it into their hand, then shuffle." Note that the target player searches their library (which may be affected by effects such as that of Stranglehold) and that the card they find is revealed, even though these words aren't included in the ability's reminder text
Personally, I've enjoyed playing Jenova as a +1/+1 counters deck, even without many Mutants
These marketing items are contained in select collection boxes and are not legitimate for tournament play, as they are intended exclusively as novelty collectibles and display pieces
Not content with mono-color land offerings, there are also some dual-color MDFCs that have a tapped dual color land on the back of a hybrid spell
The plan is simple: get as many Soldiers as you can into play, before running your opponent down with lots of evasion