extra upkeep cards mtg Explore the 6 Spells in Magic The Best Cards for Extra

That's why it's my top permanent token copy maker

Others are just good, and thats what this two or three mana 2/1 flier is in Spined Thopter

There are so many +1/+1 counter synergies these days that its incredibly easy to make an oppressively powerful deck with that strategy, and I personally dont like the mental energy required to keep track of all the various triggers those strategies accumulate on the battlefield

You can flicker away those finality counters with ease

This makes sense from a lore perspective, as the plane of Mirrodin, which we now know as New Phyrexia, was created by the artifact planeswalker Karn and was originally called Argentum