Featuring Assassins in every color as well as quite a few new legendary Assassins, Universes Beyond: Assassin's Creed allows you to play Assassins in almost any color pairing you desire
Usually one counter is worth 10 damage
White, blue and black are pretty interactive with each other, and red has a bit of evasion and can burn down those damn birds
This should stay above bulk, but I doubt itll make it above $2 until Cyclonic Rift rotates
Water Gun Balloon Game Water Gun Balloon Game was a card that I considered in the early days of my cube, but its probably too niche for many lists
Build your list in the deck builder, count your ramp honestly, and then watch your games: if you're regularly stuck on four mana while the table pulls ahead, add ramp