Shield: +1 AC for every 2 levels above 1st level

 

Detect Magic: When you cast this spell using a spell slot of 2nd level or higher, the radius increases by 5 feet for each slot level above 1st. When you use a spell slot of 9th level, mundane means cannot block the spell's divination.

 

Identify: When you cast this spell using a spell slot of 3rd level or higher, it no longer requires a material component.

 

Shield of Faith: When you cast this spell using a spell slot of 2nd level, you can maintain your concentration on the spell for up to 1 hour. When you use a spell slot of 3rd or 4th level, you can maintain your concentration on the spell for up to 8 hours.When you use a spell slot of 5th level or higher, you can maintain your concentration on the spell for up to 24 hours.

 

Enlarge/Reduce: At 4th level, Allows Concentration up to 10 minutes. At 6th level lasts for 10 minutes without requiring concentration.

 

Barkskin: When you cast this spell using a spell slot of 4th level or higher, the AC minimum increases by 1 for every 2 slot levels above 2nd..

 

Knock: When you cast this spell using a spell slot of 3rd level or higher, the spell is silent when opening nonmagical locks or arcane locks of a lower spell level.

 

Arcane Lock: When you cast this spell using a spell slot of 3rd level or higher, the amount the DC to undo the lock increases by increases by 1 for each slot level above 2nd.