Along with that, Martha Jones also makes it so that you can make her unblockable when you sacrifice a clue, but also makes another target creature unblockable
Najeela starts generating value the moment she or another Warrior attacks and continues scaling as the game progresses
To be fair you could start immediately with one of these but, honestly, progressing from a basic deck to a planeswalker is an easier learning curve
I love that with cheap artifact dorks that have massive weaknesses like Phyrexian Dreadnaught a one mana 12/12 you sacrifice at least 12 power to keep but could copy with this on turn 3
(2022-10-07) While you'll use the cards in your graveyard to determine the stats and abilities of your graveyard-that's-a-creature, those cards aren't themselves on the battlefield
We now know Dungeon cards are something that can be completed, after a venture (worth noting that adventure, key yo the name of the Set, is literally "venture into")