Volcanic Islands cheapest variant is the 1993 International Edition card, which will still set you back around 300
While it doesnt replace itself up front the way Animation did, this format has lots of random artifact tokens that this can animate into a very real creature, and the Glyph does replace itself if your opponent can ever deal with your creature, and they probably have to in one way or another, since a 5/4 isnt really the kind of thing you can ignore
The same is true for reducing the cost of Doctor spells
First, it puts plus-one plus-one counters on all your Creatures that attacked, further pushing your advantage
in June 2020 this Yorion esper control was 9.35% of the pioneer meta according to mtggoldfish
This has a Bringer of the whatever Dawn type effect, but is on a relatively puny 3/3 body