Imprint — When Extraplanar Lens enters, you may exile target land you control.Whenever a land with the same name as the exiled card is tapped for mana, its controller adds one mana of any type that land produced.
You may have Spark Double enter as a copy of a creature or planeswalker you control, except it enters with an additional +1/+1 counter on it if it's a creature, it enters with an additional loyalty counter on it if it's a planeswalker, and it isn't legendary.
Commander ninjutsu (, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand or the command zone tapped and attacking.)Whenever a Ninja you control deals combat damage to a player, reveal the top card of your library and put that card into your hand. Each opponent loses life equal to that card's mana value.
Whenever another creature enters, its controller may draw a card if its power is greater than each other creature's power., : Add X mana in any combination of colors, where X is the greatest power among creatures you control.
If you control a commander, you may cast this spell without paying its mana cost.Prevent all damage that would be dealt this turn by creatures your opponents control.
Afflict 3 (Whenever this creature becomes blocked, defending player loses 3 life.)At the beginning of each of your postcombat main phases, add for each 1 life your opponents have lost this turn.
Changeling (This card is every creature type.)As Morophon, the Boundless enters, choose a creature type.Spells of the chosen type you cast cost less to cast. This effect reduces only the amount of colored mana you pay.Other creatures you control of the chosen type get +1/+1.
When Teyo, Geometric Tactician enters, create a 0/4 white Wall creature token with defender and flying.+1: You and target opponent each draw a card.−2: Choose left or right. Until your next turn, each player may attack only the nearest opponent in the last chosen direction and planeswalkers controlled by that opponent.