The are about 35 non-foils available on TCGPlayer.com alone, so you can easily go deep at $25 or less if you are ok to sit on them for a while
If a cost to cast a spell includes revealing a card, that card remains revealed from the time the spell is announced until the time it leaves the stack
Hisuian Heavy Ball [Reverse Holo] #146 (Pokemon Astral Radiance | Pokemon Cards) prices are based on the historic sales
Shivan Fire is the worst of the three as paying 5 mana for 4 damage is a poor rate, and while more reliable than the others, a lot less powerful
Ive always enjoyed the jaunts into Innistrad, but you can only go vampires, werewolves, and zombies, oh my! so many times
Tymna provides one of the most efficient and repeatable sources of card draw in the command zone