how to build an mtg commander deck I made a tool that lets you a in a few minutes : r/mtg Magic the Gathering: a Commander

The OG Avacyns price tag might make this a desirable alternative

You could run Alena, Kessig Trapper, and Halana, Kessig Ranger

Lieutenant Kirtar Two

If an opponent tries to destroy a creature with all of your Auras and Equipment attached to it, for two mana you can move all of them to another creature, or spread them between several creatures

These connections used to cost north of $30, but a couple back-to-back reprints dropped it below the $10 mark

Kess, Dissident Mage Graveyard recursion for non-permanent spells is always a great thing to have, especially in a format like Commander where you can only have a single copy of each non-basic land in your deck