Special mace super attack: the seismic uppercut

For every smash attack you make from 5 blocks high or more, you charge up a cool down br that appears on the weird indentation things on the sides of the heavy core on the mace. Once the attack is fully charged, the mace is ready to use an attack capable of cataclysmic damage. The seismic uppercut! You right click and hold, and then you swing up, sending a breeze explosion that launches your enemy upwards and smacks them with 14 damage. If you kill the enemy and they are compatible for such a drop, they will drop a head. A second idea for an attack is called charge slam. When you right click, it sends you hurtling at 3 blocks a millisecond in any direction your looking (on a flat plain can't go upwards because riptide already exists), dealing 10 damage and goat ram knockback. Secondly, add new functionality to the heavy core. Maybe make it smeltable into a thing called heavy steel ingots for tool making, or make it store wind charges, or be a more expensive anvil trap. Make it effect movement idk. Really emphasize the fact that this little block is dense enough to create a weapon of immense destructive proportions.