Goblin Biker- This is a good, solid card and it feels very goblin-y. The only thing I'd change is maybe giving it a sac n' burn type of effect, but it might shift the focus of it away from the vehicle crewing and require an additional 1 to cast.
Thanks for the feedback. I was wondering if I could get away with +4/+4 to be more hellion-y, but decided to play it safe. Didn't notice it might have made it a bit less powerful than I was shooting for. Hopefully this new one can be good enough for (R).
Hellion Umbra4RR
Enchantment-Aura (R)
Enchant creature
Enchanted creature gets +4/+4 and "Whenever this creature attacks, you may pay 4. If you do, this creature does X damage to each creature defending player controls, where X is this creatures power."
Totem Armor
Another way I thought of doing this would be making it like Flameblast Dragon where you pay X to do X damage, but 4 felt like a safecost for a wrath-like effect. Hopefully I didn't undercut it's power again.
Engaged Researcher- Misread this as Enraged Researcher at first. The scry makes much more sense with the g instead. Not sure how useful the Swarm on it is though. A 1/1 for U that will usually only show you the top 3 cards but with potential for more is decent, but not good enough to run more than 6-8, except in a hypothetical janky Jeskai weenie wizard tribal deck.
Tome of Alexandria- Don't play with cards like this much, but I think this is probably balanced like this. Even if the wish effect is conditional it should cost at least 1 to activate, since you could theoretically tutor a card that makes One with Nothing an alright play.
Here's a card I made after finding out there wasn't a red umbra. Hellion Umbra4RR
Enchantment-Aura
Enchant Creature
Enchanted creature gets +2/+2 and "Whenever this creature attacks, it deals 2 damage to each creature defending player controls."
Totem Armor
Went with Hellion instead of something more classically red like dragons 'cause Hellions are sick and deserve some more spotlight. As for abilities, I went with the Pyroclasm effect since hellions have a tendency to have some kind of burneffect, and the ones that don't are just hasty tramplers and you could get that with Messenger's Speed. It might be a bit much, but 6 mana is a pretty big investment so I think it should be fine.
Land
When another land you control is tapped for the first time each turn, you lose the game unless you sacrifice a nonland
Thanks for the feedback. I was wondering if I could get away with +4/+4 to be more hellion-y, but decided to play it safe. Didn't notice it might have made it a bit less powerful than I was shooting for. Hopefully this new one can be good enough for (R).
Hellion Umbra4RR
Enchantment-Aura (R)
Enchant creature
Enchanted creature gets +4/+4 and "Whenever this creature attacks, you may pay 4. If you do, this creature does X damage to each creature defending player controls, where X is this creatures power."
Totem Armor
Another way I thought of doing this would be making it like Flameblast Dragon where you pay X to do X damage, but 4 felt like a safe cost for a wrath-like effect. Hopefully I didn't undercut it's power again.
Tome of Alexandria- Don't play with cards like this much, but I think this is probably balanced like this. Even if the wish effect is conditional it should cost at least 1 to activate, since you could theoretically tutor a card that makes One with Nothing an alright play.
Here's a card I made after finding out there wasn't a red umbra.
Hellion Umbra4RR
Enchantment-Aura
Enchant Creature
Enchanted creature gets +2/+2 and "Whenever this creature attacks, it deals 2 damage to each creature defending player controls."
Totem Armor
Went with Hellion instead of something more classically red like dragons 'cause Hellions are sick and deserve some more spotlight. As for abilities, I went with the Pyroclasm effect since hellions have a tendency to have some kind of burn effect, and the ones that don't are just hasty tramplers and you could get that with Messenger's Speed. It might be a bit much, but 6 mana is a pretty big investment so I think it should be fine.