While casting a spell without paying its mana cost using the last ability, you can't pay alternative costs, but you may choose to pay any optional additional costs the spell may have (such as a kicker cost)
noob_number_8 didn't specify the playstyle for this deck
(Don't apply Weakness and Resistance for Benched Pokmon.) Murkrow C - Swarm Search your deck for up to 2 Murkrow and put them onto your Bench
2021-03-19 You are never forced to activate mana abilities to pay costs, so if there is a mandatory additional mana cost (such as from Thalia, Guardian of Thraben), you can decline to activate mana abilities to pay for it and hence fail to cast the suspended card, leaving it in exile
When youre ready to turn your collection into profit, knowing where and how to sell matters just as much as what youre selling
On a mulligan, the simulator will prompt the player to select cards to place on the bottom of the library, faithfully implementing the London Mulligan rule