Whenever Creatures leave the battlefield, their counters move onto The Ozolith, allowing aggressive and sacrifice based decks to preserve value even through removal
You cant play this without the artifacts to support it, but it's great with them
The backup ability on this card is quite compelling (and not just on this card), since it gives the same reanimation
Description: Its unique effects make it a valuable addition to decks
Those cards both currently go for roughly $10 each on the resale market (although the TMNT versions are currently available for roughly half that price on TCGPlayer)
While Tocasia's Welcome is far from being our mighty green artifact, it can still provide you with enough card draw through the course of a game to justify running it, especially if you use creatures with flash like Cathar Commando that can be played on your opponents turn to draw a card