It is the cards themselves that hold the key, there are types of design and certain mechanisms that go a long way to minimising both mana floods and mana screws
You can splash anything in green ramp but the only thing I ever really want to splash is red
The cherry on top of the cake is that it doesnt care if you have more lands already you still get to search
Suddenly youve got this monstrous Creature on your side of the field, and all you had to do to create is was spend one mana and then gain some life
Prowess enables good attacks even against larger blockers, making more tokens and letting the opponent decide whether to risk it or not, after all, combat tricks are excellent with prowess creatures
However, if youre the monarch, instead of milling two cards, those players have to mill ten instead