Orfeo, the Boulder and go to town
Okoye, Dora Milaje Leader gives me half of that and is a great flicker target
Black has lots of one-power creatures with deathtouch
That said, since Slivers give all their buddies a wide array of power boosts, keyword abilities, and effects, youll usually be better served by trying to harness these combos with this hivemind to increase your odds of having the right combo pieces when you want them
"Tug-of-War" is great at sending out pinging little damage across the board to your opponents, which will fuel your strategy - and it doesn't hurt that, in a pinch, it can wipe out a lot of evasive enemy characters
Then, always ponder whether you just focus on yourself, or limit how much room you are giving your opponent to progress their synergies