Frozen Core is a rare structure that grants you extra mana. Its strength can be increased when leveling up. Frozen Core can be used in ramp and control decks.
Frozen Core's mana generation can let you play high-cost cards on earlier turns, overpowering your opponent's cards.
Frozen Core, played as early as possible on turn 5, will give you at least 8 mana on the next turn. The extra mana can give you an advantage over your opponent power-wise.
Make sure not to play Frozen Core while your board is at risk, as it will be a huge setback with Frozen Core's 5 mana cost.
Since Frozen Core has below average strength and is a high priority target, cards like Moment's Peace or Fleshmenders can defend it well.
When playing against this card, its destruction should be a high priority. Winter Pact strategies often center around controlling the game until they can play high-cost cards, and Frozen Core only accelerates this progress.
At the start of your turn, gain 2 mana.
August 7, 2017: Increased mana by 2 and mana from ability by 1, reduced strength by 1
August 30, 2017: Increased strength by 1
January 31, 2018: Increased strength by 1 at lower levels
September 18, 2018: Increased strength at higher levels
May 9, 2019: Gives 3 mana at all levels
July 21: 2020: Decreased strength and ability by 1