Base Tower A tower marked as part of the objective. Every enemy base tower and the enemy Keep must be destroyed for victory.
Card A playable item in a player's deck. Current playable cards summon sidekicks or cast spells.
Card Level A card's upgrade level, from 1 to 10. Default upgrades raise health, damage, or spell duration by 5% per level where applicable.
Deck An ordered group of 8-12 unique cards. Played cards cycle to the bottom.
Hand The five cards currently available to play. The native pickaxe occupies a separate slot.
Keep A required objective building. A team falls when its Keep and all of its base towers are destroyed.
Mana The resource spent to play cards. It starts at 0, caps at 10, and regenerates over time.
Mana Crystal A mineable battlefield object. Each hit grants 1 mana; a spell with the same name can create one.
Overtime The 1-minute phase after the 5-minute main timer. Mana regenerates twice as fast.
Sidekick A fighter summoned onto the battlefield by a sidekick card.
Spell A card that creates damage, healing, control, buffs, mana tools, summons, or conversion effects.
Sudden Death The phase after overtime. Every tower and Keep takes 50 damage per second until objectives resolve the match.
Tower A defensive building with a 3-tile attack range. Base towers also count toward victory.
Preferred Target The kind of enemy or building a sidekick usually tries to attack first.