Heroic Intervention (Aether Revolt) No damage, no problems Finally, we have Heroic Intervention
This is why I suggest Guild Artisan as a possible pairing: it can give you up to four treasures a turn when Karlach attacks, which will let you power out some truly terrifying monsters
Unlike many ramp effects, it can grab any Forest, not just Basic ones - allowing it to dig up certain dual- and tri-lands - and still leaves behind a creature, albeit a small one
Besides mana links, you can also take delivery quests for an amulet, for a reward with no risk
Flying (This creature can't be blocked except by creatures with flying or reach.) Attacking creatures you control get +1/+0
Odd considering the singleton nature of Commander, but Sakashima's already a standard clone on its own