Multi-classing is a powerful tool in building your character.
For example... I primarily play WoTC organized play Adventure League. I have a character that is 2 levels of Fighter and 13 levels of Wizard.
The two levels of Fighter gives me the following:
Starting with fighter I get Constitution as one of my saving throws proficiencies... this is huge for Concentration checks that I will be making in combat
I get access to heavy armor and shield at 1st level which makes my AC pretty good and better than Mage Armor
I get a Fighter Style which I choose defensive which increases my AC
I get Action Surge which allows me to cast 2 spells in a round and bypasses the normal ruling of casting only one spell and a cantrip in a round
I get Second Wind which gives me free healing and being on Wizard hit die... makes this healing even more effective
I get all this for the loss of a couple of mid level spells once I hit 20th level and a delay when I get my next tier level of spells.
Once I hit 7th level with this character I never looked back and decently formidable when I play this character.
For example... I primarily play WoTC organized play Adventure League. I have a character that is 2 levels of Fighter and 13 levels of Wizard.
The two levels of Fighter gives me the following:
Starting with fighter I get Constitution as one of my saving throws proficiencies... this is huge for Concentration checks that I will be making in combat
I get access to heavy armor and shield at 1st level which makes my AC pretty good and better than Mage Armor
I get a Fighter Style which I choose defensive which increases my AC
I get Action Surge which allows me to cast 2 spells in a round and bypasses the normal ruling of casting only one spell and a cantrip in a round
I get Second Wind which gives me free healing and being on Wizard hit die... makes this healing even more effective
I get all this for the loss of a couple of mid level spells once I hit 20th level and a delay when I get my next tier level of spells.
Once I hit 7th level with this character I never looked back and decently formidable when I play this character.