The thing is haste buys you a lot more than just time, it is the inability to react accordingly and the lack of information and the removal of sorcery speed things as issues that make haste to valuable in combination with a lot of things you might cheat in
I mean, the legendary artifact is by far more useful in coin flip decks than the rest of poor old Krark, as weve already seen with Krark, the Thumbless
If this card is Special Summoned from the GY: You can draw 2 cards
Decks like Izzet Prowess and Domain Zoo tend to play less enchantment removal, which gives you more of a chance to stick your big haymakers
For instance, you may only control one "Alien Hyperspace Jumpgate" or "Alien Warlord" at a time, hence their Control Limit is 1 and their control condition is that you can only control one of them
Many of these cards are not collectible and can be in almost every player