{U}, {T}, Sacrifice Magus of the Mind: Shuffle your library, then exile the top X cards, where X is one plus the number of spells cast this turn. Until end of turn, you may play cards exiled this way without paying their mana costs.
Flash When Portal Mage enters the battlefield during the declare attackers step, you may reselect which player or planeswalker target attacking creature is attacking. (It can't attack its controller or its controller's planeswalkers.)
Indestructible {T}: Add one mana of any color to your mana pool.
Cats you control have protection from Rats. (They can't be blocked, targeted, or dealt damage by Rats.) At the beginning of your end step, target opponent creates a 1/1 black Rat creature token with deathtouch. Whenever a Rat dies, put a +1/+1 counter on each Cat you control.
{1}: You may cast target creature card in a graveyard this turn. When you cast that card this turn, Havengul Lich gains all activated abilities of that card until end of turn.
When Stalking Leonin enters the battlefield, secretly choose an opponent. Reveal the player you chose: Exile target creature that's attacking you if it's controlled by the chosen player. Activate this ability only once.
{3}{G}{W}: Monstrosity 1. (If this creature isn't monstrous, put a +1/+1 counter on it and it becomes monstrous.) As long as Fleecemane Lion is monstrous, it has hexproof and indestructible.
For each creature target player controls, create a token that's a copy of that creature.
At the beginning of your upkeep, create a 2/2 white Cat creature token for each Equipment attached to Kemba, Kha Regent.
Forestwalk (This creature can't be blocked as long as defending player controls a Forest.) Whenever Jedit Ojanen of Efrava attacks or blocks, create a 2/2 green Cat Warrior creature token with forestwalk.
First strike {3}{W}{W}: Attacking creatures you control get +X/+X until end of turn, where X is the number of attacking creatures.
Whenever Jareth, Leonine Titan blocks, it gets +7/+7 until end of turn. {W}: Jareth gains protection from the color of your choice until end of turn.
Fear (This creature can't be blocked except by artifact creatures and/or black creatures.) Whenever Shadowmage Infiltrator deals combat damage to a player, you may draw a card.
Exile target nonland permanent. Each player other than its controller creates a token that's a copy of it.