Ancient Apparition + Techies

Why this works

Setting up map control with these two creates zones where enemies can't recover. A hero might survive walking over a Proximity Mine from Techies and try to retreat, but that's where Ancient Apparition provides the follow-up. A global Ice Blast prevents any healing and often shatters the low-health target from across the map. The synergy improves further with Ice Vortex, which can be placed on a suspected minefield to increase the magic damage from the initial explosion. This pairing makes Techies' defensive setups much more lethal, turning chip damage into confirmed kills.

The plan comes together in the mid-game, once Techies has had time to mine key areas around objectives. Your team can then confidently take fights in those zones. The enemy's response has to be proactive: they need excellent vision to de-mine and must avoid grouping up for a multi-hero Ice Blast. If the other team gets a strong start and can push before Techies establishes a foothold, or if they have heroes who can safely clear mines from a distance, the whole strategy can fall apart. This reliance on setup keeps the advantage from being too decisive.