It makes the games take forever
My thought process is that if you are already playing four Ally Gideon, Gideon of the Trials makes a fine one- or two-of to pair with him
For sure, its an ace in tempo-based decks, where you can sweep the board in the early turns and eventually hardcast it when you finish the gas
You don't have to choose every permanent or player that has a counter, only the ones you want to add another counter to
Neheb's mana ability is especially great in decks with a Dragon tribal subtheme, as the huge damage that the Dragons output produces enough mana to cast even more massive Dragons
FromTheShire: Definitely a bunch of creatures, artifacts, and enchantments you can rebuy, or you can just rely on all of the extra draw to find new things to sacrifice