A great way to really emphasize what I'm talking about is to show you the opposite
Whenever you cast a legendary spell from your hand, exile cards from the top of your library until you exile a legendary nonland card with lesser mana value
Into the Inklands is all about location cards If youve seen the trailer for into the Inklands, youll see that at the end of it, the characters are going out into the magical world in which Lorcana takes place
You can have Elspeth, Sun's Champion, Elspeth, Sun's Nemesis, and Elspeth, Knight-Errant all in play at the same time under your control because none of them shares an identical name with the other even though they all have the Legendary Planeswalker Elspeth type
Tarkir: Dragonstorm added a bunch of new pieces to this archetype, with the entire Abzan Armor Commander precon centered on a toughness-forward strategy
...but they are both 1/1 green creatures for four mana that can activate to put creatures from your hand into play