I like to play with cards like these
This allows you to save a great deal of mana, and get a ton of value out of cards like Colossus Hammer that possess a very low mana cost, but a very high equip cost
What does "move the doom counter one numeral to the left" mean
Both Scrooge McDuck, Uncle Moneybags and Scrooge McDuck, Richest Duck in the World can help you play items for a discount or even for free, and if your opponent manages to destroy it, Gyro Gearloose, Gadget Expert can let you put it back on top of your deck to be played again
Exile the top card of your library: Put X +1/+1 counters on this creature, where X is the exiled cards mana value
This applies to MTG cards too