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send 1 "Virtual World" card of a different type (Monster, Spell, Trap) from your Deck to the GY, and if you do, Special Summon this card, then, [Additional Effect]

When your monsters need help, your Spells and Traps are vital for staying in the game

In fact, Magic designers often grade other mechanics according to what they call The Storm Scale: how powerful is the mechanic on a scale of 1 to storm

And with Kuldotha Forgemaster as a tutor option, I can see this deck getting out of hand very quickly

Say, for example, you have a sealed deck that's primarily red and green, but you want to play with one copy of Garruk, Apex Predator

Since many Ritual Monsters have powerful on summon effects, this opens up the ability to use them as an interruption tool on the opponent's turn