So, in our example of Godless Shrine, the rules text states, "Tap: Add one white mana or black mana." It is followed by, " As Godless Shrine enters, you may pay 2 life
You can't wait and cast that card later in the turn
Ideally, you would only use a 1-1-1 line of this Pokemon family, in a water type deck, you would keep this line on the bench, using Starmie's Ability, and then if the opponent had Pokemon BREAK in play you would move Starmie BREAK to the active Pokemon spot and use Break Star until all of those Pokemon are defeated, I believe all BREAK cards have less than 200 HP, so it should be a multiple knock out situation with Starmie BREAK's move
Discard doesnt work with gravestorm because for a card or token to be considered a permanent, it needs to have been on the battlefield first
A permanent card is an artifact, battle, creature, enchantment, land, or planeswalker card
Ramping and multicolored stuff aren't a big theme here, and while you can sac this to Forage for value, it doesn't look good to me