That seems like a minor quibble, but when you only have a handful of types, your odds of having something on-hand to deal with a type weakness, or something that would suffer from one, is much higher
Akki Battle Squad Ballista Squad Battle Squadron Bomb Squad Catapult Squad Cybermen Squadron Dalek Squadron Daysquad Marshal EPF Point Squad Earwig Squad Faerie Squadron Fireflux Squad Haazda Snare Squad Howlsquad Heavy Longshot Squad Mandroid Squadron Maulfist Squad Mogg Squad Nav Squad Commandos Nightsquad Commando Pulsar Squadron Ace Ranger Squadron Referee Squad Resistance Squad Reveille Squad Securitron Squadron Silverwing Squadron Spiteful Squad Squad Captain Squad Commander Squad Rallier Squadron Hawk Suntail Squadron The Squadron Sinister Thopter Squadron Thunderhead Squadron Whisper Squad Wild Pack Squad
Fill up your graveyard, get cards out of your graveyard, and profit, as the kids say
Its all creatures that need to share a color
Each Stadium card offers different effects, and since they affect both players, they should be carefully selected when building your deck