execute as @e[type=cave_spider,tag=!plussed] run data merge entity @s {DeathLootTable:"survivalplus:entities/cave_spider"}
execute as @e[type=cave_spider,tag=!plussed] run data merge entity @s {attributes:[{id:"movement_speed",base:0.5f}]}
execute as @e[type=cave_spider,tag=!plussed] run tag @s add plussed