Yzd890456

Here are the specific commands used in the command block.
1./execute as @e[type=guardian] at @s run tp @s ~~~ , Repeat, Always Active
2./structure load fireball ~ ~3 ~ , Impulse, Needs Redstone. Before using this command, please save a fireball structure called a fireball using structural blocks.
3./execute as @e[type=guardian] at @s run damage @e[type=fireball] 0 entity_attack entity @s[c=1] , Impulse, Needs Redstone
4. tp @e [type=!player] ~~1~ , Impulse, Needs Redstone
Afterwards, use the spawn egg to summon a guardian, then use a lever to activate all impulses command blocks in the order.
About the second question, this issue occurs on Android phones.

Here are the specific commands used in the command block.
1./execute as @e[type=guardian] at @s run tp @s ~~~ , Repeat, Always Active
2./structure load fireball ~ ~3 ~ , Impulse, Needs Redstone. Before using this command, please save a fireball with a structural block
3./execute as @e[type=guardian] at @s run damage @e[type=fireball] 0 entity_attack entity @s[c=1] , Impulse, Needs Redstone
4. tp @ e [type=! Player]~~1~ , Impulse, Needs Redstone
Afterwards, use the spawn egg to summon a guardian, then use a lever to activate all impulses command blocks in the order.
About the second question, this issue occurs on Android phones.

I apologize for my negligence, the report has been updated.