Cosima, God of the Voyage Cosima is the God of the Sea
In cube you can't really have 10% of your deck as one mana discard cards as their are not enough, the options become too weak too quickly and the good ones get hoovered up very quickly
Say youre playing Elsha of the Infinite
Lightning Bolts generational efficiency translates even into Vintage, where its particularly good at killing Deathrite Shamans, Dark Confidants, and Jace, the Mind Sculptor
If you do, it gains haste, and it's returned from the battlefield to its owner's hand at the beginning of the next end step.) Backup 1 (When this creature enters, put a +1/+1 counter on target creature
You should be careful to not confuse these alternative casting costs for abilities which are playable from hand, like channel or ninjutsu