"We were actually pretty calm (when Colorado rallied from down 4-1)," Garland said. "We knew we were going to get a little push there and try to get one. … [Richardson's] goal was huge."
Landeskog scored a power-play goal at 5:22 of the third period to make it 4-2, and Kerfoot scored on a backhand in the slot at 7:39 to cut it to 4-3.
MacKinnon tied it 4-4 at 11:51, faking a shot at the blue line, getting around Coyotes forward Alex Galchenyuk and scoring from the high slot.
"We have to learn how to bring that every single night, right from the drop of the puck," Landeskog said. "We were a little bit sluggish and didn't execute in the first two periods, but the way we played in the third, that's the way we've got to bring it every night."