You can keep unspent red mana indefinitely while Electro is under your control
I have a lot of cards that I love the art for, but I'll try and narrow it down to my favorite planes and a few assorted others
If Goldbug, Humanity's Ally dies before combat damage is dealt to attacking Humans, the damage won't be prevented
The seven cards in the opening hand, that one will cast to win the game, are: Lotus Bloom Dwell on the Past Doomsday (we all knew it would probably involve this) Ivory Tower Emerald Medallion Growth Spasm Magus of the Tabernacle In case you were curious how to win this slowly, here's the full breakdown
Crackling Drake might be harder to cast and more expensive, but that additional cost comes at the benefit of Crackling Drake powering up on instant and sorcery spells in exile
My lists arent especially heavy on planeswalkers, but I do consider them to be among the most significant and positive additions to Cube of all time