This is, for example, why many proliferate cards ( You choose any number of permanents and/or players with counters on them, then give each another counter of a kind already there ) in Scars of Mirrodin block created a counter in addition to proliferating
There are cards galore like this in the game
Thats part of why Pawpatch is so valuable to this deck and Fading Hope continues to be another one of my favorite pieces of creature interaction in Simic
That said, I still feel like I have no idea whats going on sometimes
Lore Counter Update: The lore counter has additional functionality for playing with the new Archazias Island card: Donald Duck Flustered Sorcerer
Muerras most relevant line of text is the impulse draw line which of course absolutely means that Rocco, Street Chef, Faldorn, Dread Wolf Herald, or Temur builds of The Thirteenth Doctor will consider Muerras inclusion in the 99 to take advantage of the incidental life gain and the extra mana here or there