More options makes powerful moves accessible
A creature with indestructible or a creature that regenerates won't count as having been "destroyed this way." If a creature with flying would be destroyed, but an Aura with the totem armor ability is destroyed instead, Whiptongue Hydra won't count that creature or that Aura as a "creature destroyed this way." Xantcha, Sleeper Agent 1BR Legendary Creature Minion 5/5 As Xantcha, Sleeper Agent enters the battlefield, an opponent of your choice gains control of it
Plenty of Commanders can auto equip this, or reduce equip costs considerably using the right cards
Nissa can make turn four or five Eldrazi happen, and not just the turdy cheap ones, things like Ulamog and Kozilek
1 Untapping Making use of other abilities and combat phases that force creatures to tap, you can allow them to tap continuously by repeatedly untapping them
It costs one more than Thran Dynamo, yes, but it also lets you eventually get access to ludicrous amounts of extra mana, more than you could ever dream of having access to
