[@Raddum]

Looks good to me. However, I'm not a fan of how it ignores summoning conditions, because I'm pretty sure there's at least 1 Machine-Type monster it can summon that is pretty stupid once its summoning condition gets bypassed. Then again, since I can't think of any such monster that isn't banned, it should be fine.

Also, one quick question I gotta ask: Are its ATK and DEF supposed to be 0 or some supernumber? If it's the latter, change it please.

And 1 more little sidenote in terms of lore: Guardians are essentially duel spirits everyone is assigned when they are born. Like a guardian angel, hence the name. Just a little bit of flavor for future card making endeavors.