The difficulties of control can also be an argument to totally prohibit the use of proxy cards
Akromas Blessing The cycling ability salvages Akroma's Blessing from being a total dud
Synergistic Removal Continuing with the token deck example, if you need a boardwipe, Hour of Reckoning would be a much better choice than say Wrath of God in our hypothetical deck
If the creature this Aura is attached to leaves the battlefield or stops being a creature before the activated ability resolves, Wingspan Stride will be put into its owner's graveyard as a state-based action before that ability resolves, and it won't be returned to its owner's hand
Debuting in 2021s Modern Horizons 2 set, this card is a major boon to any deck that wants to play lands
This can come back pretty cheaply, and Black/Red (which likes spells) and Black/Green (which likes the graveyard) can probably take advantage of it