mtg goblin token cards [Unglued Tokens] Selector(.legalities Goblin // Solider (0004) Double-Sided

Not to mention the Fling combos this card enables

Aesi, Tyrant of Gyre Strait lets you do this and maximizes the most powerful, basic game actions in Magic

If Im playing a lot of tutors and other mana ramp spells, Oracle of Mul Daya has potential

Just learning about Magic now or looking to jump straight into the gameplay of Magic: The Gathering Assassin's Creed

Still a Sword of Fire and Ice die-hard

The average Commander deck will prioritize Eternal Witness and ways to recycle its ability before they ever even consider Den Protetor as a back-up, but morph decks can use it as a synergy piece and likely have ways to reuse its morph ability to pick up extra cards