Then you can tap artifacts you control to help pay that cost
Snapcaster decks can recover the discarded spells later, use them to fuel an early Tasigur, the Golden Fang or Gurmag Angler (the latter can be hard to turn on by turn three otherwise), or put cards in the bin for later Kolaghan's Command recursion
There are three kinds of abilities: An activated ability is always written as "[Cost] : [Effect]", like Prodigal Pyromancer , or the 2nd paragraph of Firebreathing A triggered ability is always written to start with one of the words "when", "whenever", or "at", like Blood Artist , or the 2nd paragraph of Lord of the Pit Anything else is a static ability
, Discard your hand: Put all exiled cards you own with intel counters on them into your hand
Its as simple as setting it and, every turn, both players have to look for a Dragon or an Electric-type card on their decks and put them in their hands