Lifesteal Sword Help Needed 1.20.2

I'm trying to make a sword that gives you an extra heart while it's in your inventory for every kill youv'e gotten with it, It can only give up to 5 hearts at once and everytime you die and recover the sword it will give you one less heart.

Here's what I Have so far

package com.legendaryldude.collectorssmpmod.item.items;

import net.minecraft.network.chat.Component;
import net.minecraft.world.item.ItemStack;
import net.minecraft.world.item.SwordItem;
import net.minecraft.world.item.Tier;
import net.minecraft.world.item.TooltipFlag;
import net.minecraft.world.level.Level;

import java.util.List;

public class HeartsBane extends SwordItem {
    public HeartsBane(Tier tier, int damage, float atkspeed, Properties properties) {
        super(tier, damage, atkspeed, properties);
    }
    @Override
    public void appendHoverText(ItemStack stack, Level level, List<Component> component, TooltipFlag flag) {
        component.add(Component.literal("A Stealer Of Hearts"));
        component.add(Component.literal("   Utility Weapon  "));
        component.add(Component.literal(""));
        component.add(Component.literal("When Killing Players With"));
        component.add(Component.literal("This Weapon, Gives You 1"));
        component.add(Component.literal("Extra Max Heart. Up To Five"));
        component.add(Component.literal("Extra Hearts At Once. Hearts"));
        component.add(Component.literal("Apply As Long As I'm In Your"));
        component.add(Component.literal("Inventory."));

        super.appendHoverText(stack, level, component, flag);
    }
}

Ty in advance for help, have a great day

Edited October 20, 20232 yr by LittleLDude