Kaheera, the Orphanguard With many companions banned in the most popular Constructed formats, like Jegantha, the Wellspring, Lurrus of the Dream-Den, and Yorion, Sky Nomad, options are limited, but Kaheera, the Orphanguard remains solid for control decks
But for now, take a look at the Candelabra of Tawnos + Mana Flare + Disintegrate + Fork combo I used to deal 18 damage to my opponent relatively early in the game
It goes directly from the stack to exile
It places said counters on other creatures, it goes back to your hand when it dies, and, more importantly for our purposes, it draws you cards whenever a creature with a -1/-1 counter on it dies
As a general rule of thumb, you want somewhere between 33 and 42 lands in a Commander deck