Theres not enough of a reason for you to play the Giants rather than other creatures, at least not enough to justify playing something like Crystalline Giant over Anax, Hardened in the Forge
These abilities can both produce a significant degree of value, as by simply casting mana rocks, removing opponents' permanents, and countering spells, you can advance your board state through the creation of Spirits
Sure, its pretty expensive, but whats the point of gaining all that life if not to survive
This is unbelievably easy to achieve in formats like Modern and Commander, with the latter even having a turn cycle that comprises 4 people, meaning that Wan Shi Tong can become a powerhouse if left unattended
Any farmer with a disability qualifies for the AgrAbility program and will not be turned away
It is because there are not that many UG archetpyes, many of those combo, and so the Agent is not always suitable