Godsend [Journey into Nyx] Sphinx what's the signal to attack

what's the signal to attack

but to no avail

Set: Shadowmoor Type: Enchantment Rarity: Rare Cost: {4}{G}{G} If you tap a permanent for mana

Set: Rivals of Ixalan Prerelease Promos Type: Legendary Creature — Elder Dinosaur Rarity: Rare Cost: {4}{R}{R} Whenever Etali

Godsend [Journey into Nyx] Sphinx what's the signal to attackSet: Journey into Nyx Type: Legendary Artifact Equipment Rarity: Mythic Cost: {1}{W}{W} Equipped creature gets +3 +3. Whenever equipped creature blocks or becomes blocked by one or more creatures, you may exile one of those creatures. Your opponents can't cast spells with the same name as a card exiled with Godsend. Equip {3}