mtg city's blessing cards Rivals of Ixalan Mechanics illustrated by artist Jessica @ Inklin Customs City's Blessing MTG token (v.2)

Some current examples of B tier cards are Unholy Heat, Force of Vigor, Endurance, and Territorial Kavu

[Card]Glint-Sleeve Siphoner[/Card] and [Card]Tireless Tracker[/Card] are additional options as threats that churn card advantage if Emry or Copter doesnt work out, but I want to start with the most broken option and the self-mill does a nice job of dragging Emrakuls casting cost down into reasonable territory

As well, once Ovinomancer was active, it was nigh-unkillable itself, since returning it to your hand is part of the cost and not effect

This means that those who want to play with these Lord of the Rings cards in their Commander decks for cheap have that option

Yes, you can block with summoning sickness