The Walking Dead Collection(The Walking Dead, 400 Days DLC, The Walking Dead Season 2) - 7 keys
Separately:
The Walking Dead - 2 DOTA2 keys (not TF2) + 7 cards
The Walking Dead: 400 Days - 1 Tour of Duty Ticket + 1 cards
The Walking Dead + 400 days DLC - 3 any keys
The Walking Dead Season 2 - 4 DOTA2 keys(not TF2) + 6 cards
The Walking Dead Collection(The Walking Dead, 400 Days DLC, The Walking Dead Season 2) - 7 keys
Separately:
The Walking Dead - 2 DOTA2 keys (not TF2) + 7 cards
The Walking Dead: 400 Days - 1 Tour of Duty Ticket + 1 cards
The Walking Dead + 400 days DLC - 3 any keys
The Walking Dead Season 2 - 4 DOTA2 keys(not TF2) + 6 cards