If your opening hand feels too weak, or is outright unplayable due to a lack of lands, you have the chance to take a mulligan and draw a new one that might be better
With the right enchantments, you could easily take enough turns to win a game at once
Then you may have it become a copy of another creature you control until end of turn
On the other end of our rankings, we have Saskia the Unyielding, who is is pretty much just a creature that attacks and blocks
Sadly there's no MTG Arena code for LotR cards - but check out the guide anyway, there's always a lot of fun stuff in there
And since you can choose the players affected by her negative effects, its great for political scheming too, adding another string to its already-stacked bow