Orzhov Advokist

At the beginning of your end step, for each player, put a +1/+1 counter on up to one target creature that player controls.

Each creature with one or more counters on it can't attack you or planeswalkers you control unless its controller pays , where X is the number of counters on that creature.

At the beginning of combat on your turn, if you control a Basri planeswalker, put a +1/+1 counter on this creature.

When this creature enters, until your next turn, creatures can't attack you or planeswalkers you control unless their controller pays for each of those creatures.

At the beginning of combat on your turn, put a +1/+1 counter on each of up to two target creatures.

Commander creatures you own have "When this creature enters and at the beginning of your upkeep, each player may put two +1/+1 counters on a creature they control. For each opponent who does, you gain protection from that player until your next turn." (You can't be targeted, dealt damage, or enchanted by anything controlled by that player.)

First Contact — Whenever Overseer of Vault 76 or another creature you control with power 3 or less enters, put a quest counter on Overseer of Vault 76.

At the beginning of combat on your turn, you may remove three quest counters from among permanents you control. When you do, put a +1/+1 counter on each creature you control and they gain vigilance until end of turn.