10 Golds You Should Never Ignore - MK Mobile
The gold cards are very important if you want to complete the tower. In this guide, you will find ten characters who are highly beneficial for tower runs. These 10 characters are perfect for beginners deciding which characters to purchase. All of them are significantly impactful.

The Collection
Cassie Cage (Covert Ops): All spec ops teammates have a 25% chance of unblockable attacks with Cassie Cage. She has a deadly SP2 and a Cripple ability that disables all special attacks of opponents.

She is very important for clearing towers, and her cost is only 250 Souls.
Johnny Cage (Kombat Cup): Johnny adds +15% to attack, health, and toughness for all Kombat Cup characters on the team. When an opponent tries to tag out, there is a 50% chance of stunning them, especially useful against regeneration teams or bosses.

His SP1 drains power, making him extremely useful in boss fights. If available for 450 Souls, he’s a must-have.
Hanzo Hasashi (Scorpion): Hanzo applies Bleed with a 50% chance on combo enders and 10% on basic attacks, along with fire damage. Bleed DOTs can stack, and martial artists gain 50% power cost reduction for special attacks against Bleed-affected enemies. Effective against Assassin teams, usually priced at 450 Souls.

Sonya Blade (Kombat Cup): Tagging in Sonya Blade for the first time shows the active opponent a red card, causing their recovery and power generation to fail. Even with 2-3 bars of power, it reduces them to zero.

Against regeneration teams, she prevents power gain and, when paired with Kombat Cup teammates like Johnny Cage, grants stun immunity to the whole team.
Tanya (Treacherous): Highly effective in boss fights. She can destroy boss equipment if the fight modifiers don’t include indestructibility. Cost: 450 Souls.

Klassic (Scorpion): Rare and usually found in blood rubies, but there is a 35% chance to get him in Allied Aerer or Alder Woodpack. His SP1 applies Bleed to the opponent's weakest member, very useful against regeneration teams.

Dark (Raiden): One of the strongest characters for Dark Magic battles. His passive is strong, and attacks heal him from Bleed, Fire, and Poison. Power drains increase his power instead of decreasing it.

Sub-Zero (LK-520 Triborg): Deadliest character. His special attack applies all three Triborg effects (Frostbite, Fire, Power Drain) to the active opponent simultaneously. Opponents already frostbitten take 50% critical damage.

Klassic (Ermac): Useful in boss fights. Applies 10% background damage to the opponent team for ~30 seconds, even after being destroyed.

Klassic (Sonya Blade): Excellent for SP1 Seal Break, increasing critical damage to 100% and normal damage by 50%. SP1 affects the whole team and, when used with Spec Ops teammates, ignores opponent toughness. Cost: 450 Souls.

As A Whole
All Challenge characters in the game cost 450 Souls. Many other characters are also beneficial for Survival Mode and tower progression.