As far as I could tell, they conformed to all the required specs for the size of a Magic card
(2020-11-10) There are two inherent triggered abilities associated with being the monarch
For this reason, when a particular card or mechanic or engine or whatever you want to call it sticks around for a while, its actually rare and deserves a second look and a little added recognition
Although the difference in mana you pay and that your opponent is forced to pay extra between Spell Pierce and Mana Leak are the same it is far more about the relative difference and not the nominal difference
And this ability can be used at any time, so if the Saheeli player has a wide variety of valuable or threatening things to copy, their opponents can feel like they have no viable routes forward to attack the Saheeli player's strategy
Just to make it clear, take a look at the combo of Grindstone and Painters Servantthe two cards you build around for Painter decks