Hello Magmar’s Version of Consuming Rebirth! How are you doing on this fine day!
The card… has its uses. The mana prices where Magmar has a lot of power are 4, 5, 6, and 7. For 4, Magmar has Drogon, Taygete, Elucidator, Grimrock, Veteran Silithar, and that seahorse guy. Other than seahorse guy, the others are all pretty nice. For 5, you can get Colossus, Spirit Harvester, Visionar, and the new Lava Slasher, all of which are pretty good, though Harvester may backfire. For 6 mana, you either get Makantor or Dreadnought. In egg decks, Dreadnought can be pretty good, and Makantor is Makantor. For 7, Silithar Elder and Unstable Leviathan are both pretty good, but leviathan might just loose you games.
If I were to make a change to this card, I would make it summon minions from your deck, so that you can build your deck to always get good results for each cost.
. Still, i’m a bit skeptical on the card as the whole… but getting a ‘free’ minion does make it seem more valuable.