Mnemonic Betrayal [Guilds of Ravnica - 189] Stronghold put a +1/+1 counter on

put a +1/+1 counter on each creature you control and a loyalty counter on each planeswalker you control

including medals

Fusion Summon 1 Fusion Monster from your Extra Deck that lists that monster on the field as a Fusion Material Monster

Soulherder

Mnemonic Betrayal [Guilds of Ravnica - 189] Stronghold put a +1/+1 counter onMnemonic Betrayal Game: Magic: The Gathering Set: Guilds of Ravnica Rarity: Mythic Condition: Near Mint Card Type: Sorcery Card Color: B, U Mana Cost: {1}{U}{B} Exile all cards from all opponents' graveyards. You may cast those cards this turn, and you may spend mana as though it were mana of any type to cast those spells. At the beginning of the next end step, if any of those cards remain exiled, return them to their owners' graveyards. Exile