Ramp can appear in different shapes and forms: Land-Based Ramp (Cultivate, Rampant Growth) Mana Dorks (Llanowar Elves, Bugenhagen, Wise Elder) Mana Rocks (Mind Stone, Basalt Monolith) Treasure-Makers and other artifact token producers (Smothering Tithe, Sarinth Greatwurm) Extra land drops (Exploration, Exploration Broodship) Land Recursion (Crucible of Worlds, Aftermath Analyst) Rituals (Dark Ritual, Mana Geyser) Cost Reduction (Honest Rutstein, Stormcatch Mentor) Eldrazi Spawn & Scion producers (Eldrazi Skyspawner, Kozilek's Predator) Mana Doublers (Mirari's Wake, Groundchuck & Dirtbag) Temporary mana abilities (firebending) This ranking will cover many of these forms of ramp, but will leave some more specific ones like Treasure-makers to their own separate list
That said, Bonehoard Dracosaur is insane value if you can keep it alive, so at the very least you know this goes in one of your EDH decks
But how good is the card
Crack some packs and take a trip back in time to one of Magic's most beloved eldritch nightmares, featuring cards from all across Innistrad's storylines as well as a couple reimagined ones too
Immersturm Raider I liked back when you could cheat your way through these draw + discard spells by having no cards in hand, and this raider is kind of disappointing in that regard