ServerGuard-Commands is my first plugin so please bear with us.
It is designed for small servershardcore and survival defined which do not
need such a powerful plugins like 'WorlGuard', only to be blocked, some of
the blocks. My plugin also includes basic commands such as /sun or /heal.

Plugin has the option spawn signs.
How do such signs?
Just write in the first line of the sign: [spawn]

Blocked blocks:

BEDROCK
LAVA
FIRE
MOB SPAWNER
PORTAL
ENDER PORTAL
DRAGON EGG

Commands:

/sgc - Shows the help page.
/motd - Show thw motd. To configure in the file config.yml
/rules - Shows the rules.
/pm - Send player private message.
/craftingtable /crafting - Enable craftingtable.
/enchantingtable /enchant - Enable enchantingtable.
/day - Set time to day.
/night - Set time to night.
/sun - Set weather to sun.
/rain - Set weather to rain.
/storm - Set weather to storm.
/fly - Set player fly mode on.
/unfly - Set player fly mode off.
/ban - Ban a player.
/unban - Unban a player.
/kit - Give player received basic items.
/heal - Heal a player.
/kill - Kill a player.
/gamemode /gm - Set player game mode.
/adventure - Set player game mode adventure.
/survival - Set player game mode survival.
/creative - Set player game mode creative.
/tp - Teleportation to the player.
/put - Put the player.
/setwarp - Set a warp location.
/warplist /warps - Show list all warps.
/warp - Teleport to warp.
/setspawn - Set spawn lokation.
/spawn - Teleport to spawn lokation.
Permissions

In the future:

I will add a configuration to the blocks are prohibited.
I will add permissions to used blocks prohibited.
I will add private chests.
I will add configurable language files like en_US, pl_PL or ru_RU.
I will fix all console bugs and spawn signs.

Translations:

Polish:
How to instal translations?
Rename the pl.yml file in to your plugins folder /SerwerGuard-Commands to config.yml.