Myr Battlesphere Myr Battlesphere is powerful because its both a threatening attacker and a good way to do direct damage
deck construction and battle point commentary, card list by effect
Fairy Zones Weakness manipulation can completely warp matchups, while Full Moon Rondo scales effectively in Bench-heavy formats
Gitaxian Raptor If proliferate decks become good enough they can churn out several counter bumps a turn, then this can potentially get in for a solid 3-4 damage a turn
For example, if a spell requires that you exile cards from your graveyard, you can exile cards from any graveyard
It can take a while to get to 1000 time counters for each opponent to lose 1000 life, but if theres no artifact removal, it can be an eventual win condition