Whenever a player chooses one or more targets, each player reveals the top card of their library. The player who reveals the card with the highest mana value may change the target or targets. If two or more cards are tied for highest, the target or targets remain unchanged. Changing targets this way doesn't trigger abilities of permanents named Psychic...
Kicker (You may pay an additional as you cast this spell.)Vodalian Serpent can't attack unless defending player controls an Island.If Vodalian Serpent was kicked, it enters with four +1/+1 counters on it.
You may cast Rout as though it had flash if you pay more to cast it. (You may cast it any time you could cast an instant.)Destroy all creatures. They can't be regenerated.
Kicker (You may pay an additional as you cast this spell.)Kavu Aggressor can't block.If Kavu Aggressor was kicked, it enters with a +1/+1 counter on it.
Kicker (You may pay an additional as you cast this spell.)Target player discards a card. If this spell was kicked, that player discards three cards instead.
Kicker (You may pay an additional as you cast this spell.)Target creature gains trample until end of turn. Whenever that creature deals combat damage this turn, if this spell was kicked, you gain life equal to that damage.