Counter target spell. At the beginning of your next first main phase, add X mana in any combination of colors, where X is that spell's mana value.

Counter target spell. If the amount of mana spent to cast that spell was less than its mana value, you draw a card.

Counter target spell. You get an amount of (energy counters) equal to its mana value.

Spiritual Leader — At the beginning of combat on your turn, put a +1/+1 counter on target creature.

Psychic Stimulus — : Add . When you next cast a spell with in its mana cost or activate an ability with in its activation cost this turn, copy that spell or ability. You may choose new targets for the copy. (A copy of a permanent spell becomes a token.)

Return target spell or nonland permanent an opponent controls to its owner's hand. You may cast an instant or sorcery spell with equal or lesser mana value from your hand without paying its mana cost.

Vigilance

: Add an amount of equal to Vhal's toughness. This mana can't be spent to cast spells from your hand.

Choose a Background (You can have a Background as a second commander.)

Counter target spell. Seek a card with the same mana value as that spell.

Counter target spell. You may cast a spell with equal or lesser mana value from your hand without paying its mana cost.

If an opponent cast three or more spells this turn, you may pay rather than pay this spell's mana cost.

Exile any number of target spells.

Counter target spell. Create X Treasure tokens, where X is that spell's mana value. (They're artifacts with ", Sacrifice this token: Add one mana of any color.")

At the beginning of your upkeep, you may exchange control of target nonland permanent you control and target nonland permanent an opponent controls with equal or lesser mana value.

Counter target spell. If was spent to cast this spell, that spell's controller mills X cards, where X is the spell's mana value.

If an opponent had a green creature enter the battlefield under their control this turn, you may pay rather than pay this spell's mana cost.

Tap up to two target creatures. Those creatures don't untap during their controller's next untap step.

At the beginning of your upkeep, surveil 1. (Look at the top card of your library. You may put that card into your graveyard.)

Exile a card from your graveyard: Add . Spend this mana only to cast a spell that's one or more colors without in its mana cost.

Counter target spell.

Gotcha — If an opponent says "spell" or "counter," you may say "Gotcha!" When you do, return Spell Counter from your graveyard to your hand.

Choose target artifact or creature. You get (four energy counters), then you may pay an amount of equal to that permanent's mana value. If you do, gain control of it.

As an additional cost to cast this spell, you may waterbend .

You control target opponent during their next combat phase. If this spell's additional cost was paid, you control that player during their next turn instead. (You see all cards that player could see and make all decisions for them.)

Exile Secret of Bloodbending.

Exile target spell, then roll a d20 and add that spell's mana value.

1—14 | You may cast the exiled card for as long as it remains exiled, and you may spend mana as though it were mana of any color to cast that spell.

15+ | You may cast the exiled card without paying its mana cost for as long as it remains exiled.