While graveyard recursion decks aren't nearly as popular as they used to be, exiling the opponent's graveyard can still be backbreaking for strategies like Living End and threats like Dragon's Rage Channeler
Youre aware that the graveyard is just another resource at your disposal if youve played about two or more games of Magic
Where the Frostfang was all about threatening Deathtouch versus drawing cards, Ice-Fang Coatl's plan is far more direct
On the surface, milling ten cards in a turn for each of your opponents might not seem like much, but add in a few other unblockable creatures and maybe a few effects that let you steal your opponents high powered creatures to attack with, and suddenly everyone is milling tons of cards each turn
If an ability triggers whenever you forage, it's looking specifically for the instruction to forage
Eternal Witness: Eternal Witness is itself a 2/1 creature, but gets you an extra card from the graveyard