Improvement Cards

Improvement Cards are cards played to trigger an active or passive lane effect. Improvements can be played across lanes.

List

Card	Color	Rarity	Effect
Aghanim's Sanctum	Blue	Uncommon	Active: Fully restore your tower's Mana.
Altar of the Mad Moon	Green	Uncommon	Allied Melee Creeps have +2 Regeneration.
Assault Ladders	Black	Uncommon	Allies deal +2 damage when attacking a tower.
Assured Destruction	Black	Rare	All heroes have +4 Siege.
Barracks	Blue	Uncommon	Summon a Melee Creep into this lane each deployment phase.
Bitter Enemies	Black	Rare	After the combat phase, remove a charge from Bitter Enemies. Before the action phase, if there are zero charges on Bitter Enemies, deal 6 damage to both towers.
Burning Oil	Red	Uncommon	Your tower has +2 Retaliate.
Cheating Death	Green	Rare	Active: Give a unit a Death Shield this round. May only be used if there is an allied green hero in this lane.
Conflagration	Blue	Rare	Deal 2 damage to each enemy before the action phase.
Escape Route	Black	Rare	Active: Return an allied hero to the Fountain.
Fractured Timeline	Blue	Rare	Before the action phase, give a random card in opponent's had +1 Lock.
Glyph of Confusion	Blue	Rare	Whenever any unit enters this lane, stun it this round.
Grand Melee	Red	Rare	If there is an allied red hero in this lane, all heroes have +2 Cleave.
Homefield Advantage	Green	Uncommon	Before the action phase disarm a random enemy this round.
Howling Mind	Blue	Uncommon	You and your opponent draw an extra card each round.
Ignite	Blue	Common	Deal 1 piercing damage to each enemy before the action phase.
Iron Fog Goldmine	Black	Common	Get 3 gold after the combat phase.
Keenfolk Turret	Black	Uncommon	Active: Deal 2 piercing damage to a unit.
March of the Machines	Black	Rare	Before the action phase, if there are charges on March of the Machines, remove one and deal 2 damage to the enemy tower and 2 damage to each enemy.
Messenger Rookery	Blue	Common	Active: Choose an ally. Choose a combat target for it.
Mist of Avernus	Green	Uncommon	Modify allies with +1 Attack before the action phase.
Nether Ward	Red	Rare	After opponent plays a spell, deal 3 damage to the enemy tower.
Path of the Bold	Red	Rare	After you play a red card, modify a random ally with +1 Attack.
Path of the Cunning	Black	Rare	After you play a black card, modify a random ally with +1 Siege.
Path of the Dreamer	Green	Rare	After you play green card, give your tower +3 Regeneration until end of round.
Path of the Wise	Blue	Rare	After you play a blue card, deal 1 piercing damage to a random enemy.
Revtel Investments	Black	Rare	Add a charge to Revtel Investments after the combat phase. Active: Get 4 gold for each charge. Condemn Revtel Investments.
Selemene's Favor	Green	Common	Your tower has +2 Mana.
Steam Cannon	Black	Rare	Active: Deal 4 piercing damage to a unit in any lane.
Steel Reinforcement	Red	Common	Your tower has +1 Armor.
Temple of War	Red	Uncommon	All equipped heroes have +2 Attack and +1 Armor.
The Oath	Black	Rare	You can not play spells or creeps while this is the active lane. If there is an allied black hero in this lane, allies have +4 Attack.
The Omexe Arena	Red	Uncommon	Draw a card after a hero dies.
The Tyler Estate	Black	Uncommon	Both towers have -2 Mana.
Trebuchets	Black	Common	Deal 2 piercing damage to the enemy tower before the action phase.
Unearthed Secrets	Green	Rare	Draw a card after the combat phase if your tower was dealt damage this round.
Unsupervised Artillery	Black	Uncommon	Active: Deal 4 piercing damage to the enemy tower. May only be used if there are no unblocked enemies.
Verdant Refuge	Green	Common	Allies have +1 Armor
Watchtower	Blue	Rare	Whenever an enemy improvement enters this lane, draw a card.

Improvement Cards

List

References