on skript load:
    register a new custom enchantment with id name "Explosive"
    set {_enchantment} to "Explosive" parsed as custom enchantment
    set max level of {_enchantment} to 3
    set rarity of {_enchantment} to 5
    set accepted items for {_enchantment} to "Pickaxes"
    set lore of {_enchantment} to "Explosive"

on break of sandstone:
    if player's tool has custom enchantment Explosive:
        if level of custom enchantment "Explosive" is 1:
            loop blocks in radius 1 of event-block:
                if loop-block is sandstone:
                    if player can hold loop-block:
                        give loop-block to player
                        set loop-block to air
                    if player can't hold loop-block:
                        cancel event
                        send player title "&c&lInventory Full!" with subtitle "&4&l/sell" for 5 seconds