This card can be extremely useful in a "Wight"-based Deck. For example, "King of the Skull Servants", "Skull Servant" and "Wightmare" are all Level 1 monsters. Any one of them on the field can allow you to search out "King" to summon later or "Wightmare" for its effect.
Combine this card and the "Baby Tiragon" tip below for some real chaos in a "Wight"-based Deck. Use "Pain Painter" to change 2 of your monsters to Level 2. Then use "Level Tuning" or "Mischief of the Yokai" to reduce their Levels to 1. Use this card for a "King" and follow by Summoning that "King" and "Baby". Now "Baby" can detach a monster (possibly a "Wight") and target "King" to permanently (while it remains face-up) be able to Attack Directly. And this is excellent as a late game finisher due to you probably having multiple "Wights" in the graveyard by then.
A cool little combo can be pulled off if you are summoning "Baby Tiragon". Use this card for a material or for a target after the monster is summoned.
"Light of Intervention" can allow you to Normal Summon the monster in face-up Defense in order to prevent your opponent from just destroying it and dealing damage to you. This can be useful for Level 1 monsters that you need destroyed on the field or ones that you just need in the Graveyard.
Use this card in a "Meklord" Deck to search for "Meklord Emperors" to make sure you can keep a field advantage even if the "Meklord Emperor" you currently control are destroyed. This works especially well if you need a particular "Meklord Emperor" later on.