NecroMansters

From BoardGameGeek:

In NecroMansters, players create piles of overlapping monster-themed cards onto their play area or bench in order to attack and defend. Card stacks need three distinct types in order to attack or defend: health, special ability, and attack. Once a stack has all three types, players can boost the power of their stacks by topping them with special cards. Players seek to eliminate opponents by attacking undefended lanes, but may also switch active and benched stacks to protect themselves. Each card has unique flavor text and illustration, with no two cards being exactly alike. -description from the designer